137-760: The Japanese 32nd Army ( 第32軍 , Dai Sanjū-ni gun ) was an army of the Imperial Japanese Army during the final stages of World War II . It was annihilated during the Battle of Okinawa . The Japanese 32nd Army was formed on March 13, 1944 as part of the last desperate defense effort by the Empire of Japan to deter possible landings of Allied forces in Okinawa and the surrounding Ryukyu Islands . The Japanese 32nd Army had 77,000 men (39,000 infantry in 31 battalions and 38,000 artillery, armor and combat service troops) plus
274-564: A corps d'armée in 1815 for commanding his mixed allied force of four divisions against Napoleon I. When the British Army was expanded from an expeditionary force in the First World War, corps were created to manage the large numbers of divisions. The British corps in World War I included 23 infantry corps and a few mounted corps. The word was adopted for other special formations such as
411-485: A non-military organization , such as the US Peace Corps and European Solidarity Corps . In many armies, a corps is a battlefield formation composed of two or more divisions , and typically commanded by a lieutenant general . During World War I and World War II , due to the large scale of combat, multiple corps were combined into armies which then formed into army groups . In Western armies with numbered corps,
548-557: A Canadian corps headquarters. This corps was renamed I Canadian Corps as a second corps headquarters was established in the UK, with the eventual formation of five Canadian divisions in England. I Canadian Corps eventually fought in Italy, II Canadian Corps in northwest Europe, and the two were reunited in early 1945. After the formations were disbanded after VE Day, Canada has never subsequently organized
685-452: A MEF headquarters group, a Marine division, a Marine aircraft wing, and a force service support group (re-designated as Marine logistics group in 2005). The pre– World War II Red Army of the former USSR had rifle corps much like in the Western sense with approximately three divisions to a corps. However, after the war started, the recently purged Soviet senior command ( Stavka ) structure
822-508: A communications regiment (or a separate battalion). In 1945, air defence corps could include 1 anti-aircraft artillery brigade or division. Air defence fighters operating within the limits of responsibility of the KPVO was transferred to the corps. By the end of the war, there were 14 KPVO in the Active Army, of which 5 corps continued to carry out the tasks assigned to them even after the war, and
959-473: A corps headquarters. Royal Canadian Army Cadets : A corps size in the RCAC is different everywhere, depending on the size. The commanding officer can be a captain (Previously, Commanding Officers of a large corps could have been a Major, but that capability has been removed with the creation of CJCR Group Order 5511-1) The National Revolutionary Army (NRA) corps ( 軍團 ) was a type of military organization used by
1096-407: A corps is also a grouping of personnel by common function, also known as an arm , service , mustering or branch . In the British Army, an administrative corps performs much the same role – for personnel that otherwise lack them – as a ceremonial regiment . An administrative corps therefore has its own cap badge , stable belt , and other insignia and traditions. In some cases, the term corps
1233-513: A decline in genuine voluntary enlistment. To a large extent also, the government's decision to not use the CMF during this time highlighted the organisation's increasing structural irrelevance, and questions about the role that the CMF had to play in the defence of Australia would remain until following the end of the Vietnam War . Meanwhile, the last CMF armoured regiment gave up its tanks in 1971. When
1370-448: A dedicated Cavalry Corps of three divisions and horse artillery assigned to the corps headquarters. In the early years of the war, field artillery was either part of an artillery reserve under direct army control or assigned to individual divisions. However, after the Battle of Chancellorsville the divisional artillery was placed under corps control, with each corps assigned a brigade of between four and six batteries commanded by
1507-550: A form of national service . It was also decided that the CMF would be re-organised along the lines of the AIF, adopting the divisional structure of the AIF units and maintaining their battle honours . The AIF officially ceased to exist on 1 April 1921 and the new organisation of the Citizen Forces was adopted a month later; this saw the reorganisation of the 88 infantry battalions and five pioneer regiments that had been established under
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#17330935442341644-710: A further re-organisation of the CMF was undertaken as existing battalions were reduced and additional battalions were raised in the more populous areas, namely in Queensland, Victoria and New South Wales. Concerns about the regional identity of these units were addressed by reintroducing the old numerical designations. In 1966, the Army authorised the raising of six remote area battalions, one in each state. These units offered special conditions of service for men who could not meet their training requirements through normal attendance due to their occupation or place of residence. Ultimately though
1781-445: A further three years in the CMF. Despite this, however, potential conscripts were given the option to voluntarily enlist in the CMF prior to their date of birth being announced, thus exempting them from being drafted for overseas service. Due to the desire of many to avoid being sent overseas, as a result of this option, it was estimated that by 1968 almost half of the 35,000 men in the CMF had joined to avoid being drafted. This led to
1918-465: A large extent they continued to be trained and equipped with 1914–18 equipment right up to and during World War II . The result of this change in recruitment policy was a huge drop in the size of the Army, as numbers fell by almost 20,000 in one year as there was little prospect for training and as the financial difficulties of the Great Depression began to be felt. As a result, in 1930 the decision
2055-489: A large extent, matters of defence were not necessarily a priority of the new Australian legislature at the time, and there was also a considerable diversity in opinion regarding the composition and size of the new national army and role it would play at home and indeed within the wider Imperial defence system. Nevertheless, the official transfer of forces from the states to the Commonwealth occurred on 1 March 1901, and this date
2192-497: A mobilisation platform during times of war. During World War I Australia's contribution to the fighting came from forces raised outside the citizen forces that were in existence at the time, and although many citizen soldiers enlisted in these forces, the Citizen Forces units remained in Australia. With the outbreak of World War II a similar situation evolved, with the establishment of an all-volunteer expeditionary force, however, with
2329-484: A more or less unified command structure. As a part of this, state-based mounted units were reformed into light horse regiments, supplemented by the transfer of men from a number of superfluous infantry units, while the remaining infantry were organised into battalions of the Australian Infantry Regiment and engineers and artillery were organised into field companies and garrison artillery batteries. Due to
2466-761: A move to develop a more capable Reserve force, as Australia's overseas military commitments in the Pacific and Middle East have highlighted the importance of the Reserves once more. As such, since 2000 units of the Australian Army Reserve have been deployed to East Timor and the Solomon Islands on peacekeeping duties and many more individual Reservists have been used to provide specialist capabilities and to fill in Regular Army formations being sent overseas. Following
2603-540: A number of aides-de-camp and a general staff of other officers. This staff consisted of a chief of cavalry, a chief of artillery, and representatives of the War Department 's various bureaus: an assistant adjutant general , a quartermaster , an assistant inspector general , a commissary of subsistence, an ordnance officer (all with the rank of lieutenant colonel ), and a medical director. However, there were no dedicated combat service support formations as part of
2740-403: A number of components based around the level of commitment and training obligation that its members are required to meet. For the first half of the 20th century, due to a widespread distrust of permanent military forces in Australia, the reserve military forces were the primary focus of Australian military planning. Following the end of World War II , however, this focus gradually shifted due to
2877-413: A numerically superior foe. This allowed Napoleon I to mass the bulk of his forces to effect a penetration into a weak section of enemy lines without risking his own communications or flank. This innovation stimulated other European powers to adopt similar military structures. The corps has remained an echelon of French Army organization to the modern day. As fixed military formation already in peace-time it
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#17330935442343014-430: A platform upon which the Army could mobilise in the event of a war. Initially, the plan had been for the CMF to be made up of 50,000 men organised into two divisions and other units, however, recruitment was unable to meet these targets as initially it was attempted to achieve this through voluntary enlistment. Indeed, in its first year of existence, the actual strength of the CMF was only 8,698 personnel, although this rose
3151-567: A policy of two armies. For the first two years Australia's involvement in the war was focused in overseas theatres in Europe, the Middle East and North Africa, and during this time it was the AIF that was involved in the fighting overseas, while units of the Militia were used in garrison duties in Australia and New Guinea , then occupied by Australia. During this time, the Militia units came to be derided by
3288-424: A reconnaissance regiment. The two CMF armoured brigade headquarters were also disbanded. At the same time, it was decided to amalgamate old local and regional regiments that had existed into six new multi-battalion state-based regiments. While the pentropic system eventually fell by the wayside, these regiments have endured, maintaining the battle honours of the previously existing Militia units that had perpetuated
3425-477: A reflection of overall higher standard of training. This initiative shows that in recent decades, there are now many positions for which there is little training gap at all between Reservists and Permanent Force members. In 2008–09 total strength included 17,064 active personnel. In addition there were another 12,496 members of the Standby Reserve. In late 2008 a company from the 1st Commando Regiment became
3562-599: A result of this, Militia units saw action against Japanese forces in the Dutch East Indies , at Merauke , later in the war. Despite these changes, the AIF remained the Australian Army's main combat force during the war and indeed more than 200,000 members of the Militia transferred to the AIF throughout the course of the conflict. Nevertheless, 32 Militia infantry battalions, later organised into three Militia divisions ( 3rd , 5th and 11th ), saw service over much of
3699-536: A six-day annual camp out of fear of losing their civilian employment. Also, it has been estimated that up to 50 per cent of the Militia's other ranks were medically unfit. The numbers situation had become so tenuous that it was rare for a battalion to be able to field even 100 men during an exercise, so units accepted men that would not normally meet the medical requirements, indeed it has been stated that men who were "lame and practically blind" were allowed to join in an effort to improve numbers. To illustrate this, in 1936,
3836-399: A soldier as part of a specific corps (or sometimes individual battalion). This lanyard is a woven piece of cord which is worn on ceremonial uniforms and dates back to the issue of clasp knives in the early 20th century which were secured to the uniform by a length of cord. If a soldier is posted to a unit outside of their parent corps, except in some circumstances the soldier continues to wear
3973-518: A time of war would be built, instead it would be used to augment the Regular Army. This was the first step in creating the concept of a total force, in which the differing virtues of the citizen soldier and the regular soldier would be used to complement each other, and in this vein the Millar Report recommended that the name be changed from the CMF to the Australian Army Reserve. Nevertheless, due to further cuts in defence spending and an eagerness of
4110-453: A time to provide sixteen days continuous service manning guard posts at selected points around the country. This was later expanded on 15 September to include all of the Militia, in two drafts of 40,000 men, for one month's continuous training, however, the suspension on compulsory training introduced in 1929 was not amended until January 1940. On 5 September 1939 it was also announced that a division would be raised for overseas service, but there
4247-587: A total of approximately 2,400 Army Reserve personnel have deployed on operations. In 2011, the Army Reserve's role and structure began being reformed under the Plan Beersheba reorganisation of the Army. The Army has stated that the reserves' role will become "to deliver specified capability and support and sustain Australian Defence Force (ADF) preparedness and operations". As part of this reform,
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4384-403: A vehicle of the Regular Army to denigrate the CMF as some opponents predicted, the report did much to highlight many of the conceptual and structural problems that the CMF was afflicted by at the time, however, the way in which the government chose to implement the recommendations, and indeed the way in which some of them were allowed to lapse, ultimately served to at least partially justify some of
4521-470: A widespread public perception that the CMF was a refuge for " draft dodgers ", and to the creation of an organisation in which the majority of its members had little or no motivation to fulfil their training obligations. Although this was not a universal experience, overall it affected the morale of the CMF and, coupled with the decision by the government not to activate CMF units for service in Vietnam, this led to
4658-763: Is a collective name given to the reserve units of the Australian Army . Since the Federation of Australia in 1901, the reserve military force has been known by many names, including the Citizens Forces , the Citizen Military Forces , the Militia and, unofficially, the Australian Military Forces . In 1980, however, the current name—Australian Army Reserve—was officially adopted, and it now consists of
4795-472: Is a term used for several different kinds of organization. A military innovation by Napoleon I , the formation was first named as such in 1805. The size of a corps varies greatly, but two to five divisions and anywhere from 40,000 to 80,000 are the numbers stated by the US Department of Defense. Within military terminology a corps may be: These usages often overlap. Corps may also be a generic term for
4932-496: Is also used informally, for looser groupings of independent regiments and other units – and without many or any unifying regalia , military traditions or other accoutrements – such as the Royal Armoured Corps or the "Corps of Infantry". In Australia, soldiers belong foremost to a corps which defines a common function or employment across the army. The Australian Army has a system of coloured lanyards, which each identify
5069-480: Is an operational-tactical formation (in the past - the highest tactical formation) of the former Soviet Air Defence Forces and now Russian Air Defence Forces /Aerospace Forces. The purpose of the such a corps is to protect important administrative, industrial and economic centers and regions of the country, groupings of troops (forces) and military facilities within the established limits of responsibility against air strikes. In organizational terms, an air defence corps
5206-494: Is composed of three or four divisions. There are three types of corps in the Indian Army: strike, holding and mixed. The corps HQ is the highest field formation in the army. The Pakistan Army has nine manoeuvre corps, each commanded by a lieutenant general . Each corps is composed of at least two divisions. The corps HQ is the highest field formation in the army. The Polish Armed Forces used independent operational groups in
5343-558: Is part of the district (or a separate army) of the Air Defence Forces. Also some air defence corps were separate. On the basis of individual corps, air defence zones or air defence corps areas could be created. The first KPVO were created in February 1938 for the air defence of Moscow , Leningrad and Baku (respectively 1st, 2nd and 3rd) based on anti-aircraft artillery divisions and air defence brigade ( 3rd KPVO ). The staff of
5480-484: Is the highest level of the forces that is concerned with actual combat and operational deployment. Higher levels of command are concerned with administration rather than operations, at least under current doctrine. The corps provides operational direction for the forces under its command. As of 2014, the active field corps in the US Army are I Corps , III Corps , and XVIII Airborne Corps ; their lineages derive from three of
5617-428: Is today celebrated as the birthday of the modern Australian Army. At the outset, the bulk of the Commonwealth military force was to be made up of part-time volunteers. This was arguably due to two factors. Firstly, there was a widespread desire amongst Australian policymakers to keep defence expenditure low, while secondly there was a widespread mistrust or suspicion surrounding the idea of a large standing army. After
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5754-628: The ARVN corps areas. As of July 2016, the Army deactivated all corps headquarters save three CONUS based corps ( I Corps - Washington, III Corps - Texas, and XVIII Airborne Corps - North Carolina). In the 1960s, the Marine Corps activated the I Marine Expeditionary Force (I MEF) on Okinawa (based in California since 1971) and II Marine Expeditionary Force (II MEF) in North Carolina, and re-activated
5891-641: The Allied Rapid Reaction Corps in 1994. It is no longer a purely British formation, although the UK is the "framework nation" and provides most of the staff for the headquarters. A purely national Corps headquarters could be quickly reconstituted if necessary. It took command of the International Security Assistance Force in Afghanistan on 4 May 2006. Previously, it was deployed as the headquarters commanding land forces during
6028-537: The Chinese Republic , and usually exercised command over two to three NRA divisions and often a number of independent brigades or regiments and supporting units. The Chinese Republic had 133 corps during the Second Sino-Japanese War . After losses in the early part of the war, under the 1938 reforms, the remaining scarce artillery and the other support formations were withdrawn from the division and
6165-855: The Dental Branch (Canadian Forces) and the Canadian Forces Medical Service of the Canadian Forces Health Services Group (CF H Svcs Gp). The Royal Canadian Army Service Corps transport and supply elements were combined with the Royal Canadian Ordnance Corps to form the Logistics Branch The Royal Canadian Army Service Corps clerical trades were merged with the Royal Canadian Army Pay Corps and
6302-697: The First Australian Imperial Force (AIF)—consisting entirely of personnel who had volunteered for service overseas—were united as the Australian Corps , on the Western Front , under Lieutenant General Sir John Monash . During World War II, the Australian I Corps was formed to co-ordinate three Second Australian Imperial Force (2nd AIF) units: the 6th , 7th and 9th Divisions , as well as other Allied units on some occasions, in
6439-438: The KPVO included: 4-6 anti-aircraft artillery regiments, 1 anti-aircraft machine-gun regiment, 1 searchlight regiment (or battalion), 1-2 regiments (or divisions) barrage balloons , 1- 2 regiments (or battalions) of visual observation, warning and communications ( VNOS ), and a separate communications battalion. From September 1938 to November 1940, the KPVO also included 1-2 regiments (battalions) of local air defence. During
6576-658: The Kosovo War in 1999 and also saw service in Bosnia and Herzegovina , commanding the initial stages of the IFOR deployment prior to that in 1996. Otherwise, the only time a British corps headquarters has been operationally deployed since 1945 was II Corps during the Suez Crisis . The structure of a field corps in the United States Army is not permanent. On the battlefield, the corps
6713-769: The North African campaign and Greek campaign . Following the commencement of the Pacific War , there was a phased withdrawal of I Corps to Australia, and the transfer of its headquarters to the Brisbane area, to control Allied army units in Queensland and northern New South Wales (NSW). II Corps was also formed, with Militia units, to defend south-eastern Australia, and III Corps controlled land forces in Western Australia . Sub-corps formations controlled Allied land forces in
6850-675: The Officers Training Corps . Military training of teenage boys is undertaken at secondary schools through the Combined Cadet Force , in which participation was compulsory at some schools in the 1950s. Schoolboy jargon called the CCF simply "Corps". The British Army still has a corps headquarters for operational control of forces. I Corps of the British Army of the Rhine was redesignated
6987-619: The Royal Canadian Postal Corps to form the Administration Branch (later merged with the Logistics Branch ) Other "corps", included: Canadian Engineer Corps , Signalling Corps , Corps of Guides , Canadian Women's Army Corps , Royal Canadian Army Veterinary Corps , Canadian Forestry Corps , Canadian Provost Corps and Canadian Intelligence Corps . Australian Army Reserve The Australian Army Reserve
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#17330935442347124-480: The Whitlam government came to power in late 1972, the CMF was in a very poor state. The new government moved quickly to end conscription, and this caused the CMF's strength to fall by roughly 5,000 to 23,119 by June 1973. In 1973 a committee of inquiry into the CMF was announced, under the chairmanship of Dr. T.B Millar and the subsequent report developed from this inquiry became known as the Millar Report. Far from being
7261-450: The 10,000 man Okinawa Naval Base Force and 42,000 Okinawan conscripts. However, many of its personnel were poorly trained reservists , conscripted students and home guard militia . It was annihilated during the Battle of Okinawa from April to June, 1945. Corps Corps ( / k ɔːr / ; plural corps / k ɔːr z / ; from French corps , from the Latin corpus "body")
7398-409: The 1918 scheme, the abolition of infantry regiments and the re-establishment of the 60 infantry battalions that had existed within the AIF, as well as various other units, such as light horse regiments, as well. There was little support for compulsory military service amongst the public, however, and combined with the financial pressure that the government felt at that time to reduce defence spending,
7535-426: The 1920 recommendations were not fully implemented. Although the compulsory training scheme was retained, it was decided that it would only be focused on the more populated areas, essentially ending the scheme in rural areas. The result of this was that the course of only a year the strength of the Citizen Forces fell from 127,000 to only 37,000 in 1922. Throughout the 1920s, numbers decreased even further and although
7672-478: The AIF units. This was done renumbering the infantry regiments that had been formed in 1912, and giving them the numbers of the AIF units that had been formed in their regimental areas. A total of 60 AIF infantry battalions had seen active service during the war, but there were more than 60 infantry regiments; as a result, a number of the Citizen Forces regiments were reorganised with multiple battalions, while other units were converted to pioneer regiments. Following
7809-681: The Armistice, the peacetime Canadian militia was nominally organized into corps and divisions but no full-time formations larger than a battalion were ever trained or exercised. Early in the Second World War, Canada's contribution to the British-French forces fighting the Germans was limited to a single division. After the fall of France in June 1940, a second division moved to England, coming under command of
7946-887: The Armour Branch continued to use the title Royal Canadian Armoured Corps , the Infantry Branch continued to use the Royal Canadian Infantry Corps designation, and the Artillery Branch uses the term Royal Regiment of Canadian Artillery . When the Army, Royal Canadian Navy , and Royal Canadian Air Force were merged in 1968 to form the Canadian Forces, the Royal Canadian Dental Corps and Royal Canadian Army Medical Corps were deactivated and merged with their Naval and Air Force counterparts to form
8083-416: The Army Reserve has undergone considerable changes, and members of the Army Reserve are increasingly being used on overseas deployments, not only within Regular Army units, but also in units drawn almost entirely from Reserve units. Despite being the main focus upon which Australian defence planning was based, since Federation Reserve units have primarily been used in the role of home defence and to provide
8220-452: The Army after East Timor further emphasised the need to develop the capability of the Army Reserve. Since then increasing numbers of Reservists have been deployed overseas in varying capacities as well as undertaking periods of full-time service in Australia to maintain capabilities within Regular units heavily committed to deployments to Iraq , Afghanistan , East Timor and the Solomon Islands . In lower intensity areas, such as East Timor and
8357-447: The Army and Marines diverged in their approach to the concept of the field corps. The Army continued to group its divisions into traditional corps organizations in the Continental United States (CONUS), West Germany ( V Corps and VII Corps ), and South Korea (I Corps). However, during the Vietnam War , the Army designated its corps-level headquarters in South Vietnam as I Field Force and II Field Force to avoid confusion with
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#17330935442348494-417: The Australian mainland . In April 1942, following the loss of Malaya and Singapore and the subsequent Japanese landings in New Guinea, the possibility of invasion appeared much more real. Seeing the threat that the Japanese posed to British and Australian interests in the region, the government had begun to bring AIF units back from the Middle East. Nonetheless, the bulk of the forces immediately available for
8631-410: The Civil War lacked standing organization at the corps and division levels, it moved swiftly to adopt these during the mobilization for the Spanish–American War in the spring of 1898. On 7 May, General Order 36 called for the establishment of seven "army corps" (repeating the nomenclature of the Civil War); an eighth was authorized later that month. Two of these saw action as a unit: the Fifth in Cuba and
8768-399: The Confederate corps at the Battle of Gettysburg , for instance, exceeded 20,000 men. However, for both armies, unit sizes varied dramatically with attrition throughout the war. In Civil War usages, by both sides, it was common to write out the number, thus "Twenty-first Army Corps", a practice that is usually ignored in modern histories of the war. Although the US Army in the years following
8905-433: The Eighth in the Philippines; elements of the First , Fourth , and Seventh made up the invasion force for Puerto Rico (the Second, Third , and Seventh provided replacements and occupation troops in Cuba, while the Sixth was never organized). The corps headquarters were disbanded during the months following the signing of the peace treaty (with the exception of the Eighth Army Corps, which remained active until 1900 due to
9042-411: The Federation of Australia in 1901, the amalgamation of the military forces controlled by the six separate, self-governing British colonies to form a unified force controlled by the Commonwealth was an inevitable, albeit slowly realised, consequence, given that the new Constitution of Australia assigned primary responsibility for defence to the Commonwealth. Indeed, this process took some time as, to
9179-528: The First AIF during the war. During the precautionary stage on 2 August 1914, Citizen Forces units were called up to guard essential points and man coastal forts and harbour defences. The first Australian shots (many sources report the first Allied shots) of both World War I and World War II were fired by the garrison at Fort Nepean . By June 1918, 9,215 home service troops were on active duty in Australia, alongside 2,476 regular soldiers. From 1915, only skeleton garrisons were maintained at coastal forts, but
9316-452: The Great Patriotic War from November 1941 to April 1944 the air defence corps were renamed into air defence corps areas (such as the Stalingrad Corps Region ). The corps districts included up to 9 anti-aircraft artillery regiments and 14 separate anti-aircraft artillery battalions, up to 3 anti-aircraft machine-gun regiments, 1 searchlight regiment, 1 regiment (or division) of barrage balloons, up to 4 regiments (or separate battalions) VNOS, and
9453-481: The III Amphibious Corps (which had been deactivated in 1946) as III Marine Expeditionary Force (III MEF) in South Vietnam (re-deployed to Okinawa in 1971). In 1965, all three MEFs were subsequently re-designated as Marine amphibious forces or MAFs, and in 1988 all three Marine Corps corps-level commands were again re-designated as Marine expeditionary forces (MEF). The MEF had evolved into a self-contained, corps-level, Marine air-ground task force (MAGTF) consisting of
9590-400: The Japanese drove towards Port Moresby , members of the Militia found themselves on the front lines. As reinforcements were brought up from Australia, the Militia units that had been sent to New Guinea as garrison troops earlier in the war were called upon to fight a stubborn rearguard action on the Kokoda Track to delay the Japanese advance long enough for these reinforcements to arrive. At
9727-435: The Ready Reserve scheme was established. Under this scheme the 6th Brigade , an existing Regular brigade based in Brisbane at the time, was converted to a Ready Reserve formation. The majority of the personnel were Reservists who undertook a period of twelve months full-time service before returning to normal Reserve status for a further four years. The scheme showed considerable promise. Nevertheless, due to cost constraints it
9864-528: The Regular Army in times of heavy operational commitment. As such, in late 2000 the government did what many governments had toyed with since the formation of the citizen force almost a hundred years earlier: enacting legislation that enabled the call-up of Reservists to full-time service in circumstances that fell short of a full scale defence emergency, thereby allowing their deployment overseas, while also protecting their employment and providing remuneration to employers. The continuing high operational tempo of
10001-444: The Reserves and despite these major reviews, as late as the 1990s the Army still had not managed to develop a well-structured reserve force, as it had continued to grapple with the competing demands of maintaining large-scale general readiness over developing a 'hard core' of capability within the Reserves that would be able to provide the Army with a nucleus force in times of national emergency. In 1991, in an attempt to rectify this,
10138-723: The Solomon Islands, formed units of Reservists raised from personnel drawn from many units, have been deployed on peacekeeping duties to relieve the pressure being placed upon the Regular Army and allowing them to focus on the higher intensity combat zones in Iraq and Afghanistan. In addition to this Australian Army Reserve units have been deployed on border security duties with the Royal Australian Navy as part of Operation Relex , as well as participating regularly in multinational exercises such as Rifle Company Butterworth . As such,
10275-535: The South West Pacific and participated in the following campaigns: Salamaua-Lae , Huon Peninsula , Finisterre Range , New Britain and Bougainville . Due to an overcommitment of resources early in the war, the Australian economy suffered badly from manpower shortages as early as 1942. As a result, the government began the demobilisation process before the war was over and, when it had finally come to an end,
10412-492: The Soviet air defence corps were also created. In June–July 1960, all KPVO were enlarged and consisted of: anti-aircraft missile regiments and brigades, air defense fighter regiments, radio engineering regiments and brigades, separate electronic warfare battalions, regiments and battalions of communications and logistics institutions. In many English-speaking countries and other countries influenced by British military traditions,
10549-467: The Tasmanian battalion was never formed. The subordinate relationship between the CMF and Regular Army was further underlined when the national service scheme was re-introduced in 1965, albeit in the guise of a selective ballot. Whereas previous incarnations of the system had not allowed for national servicemen to be sent overseas (within various definitions of that term), the new scheme was implemented with
10686-565: The University Regiments and the Papua New Guinea Volunteer Rifles which remained unchanged. The remaining battalions were later merged into just nine battalions. Meanwhile, the CMF armoured units had already been rationalised in 1957 and as a result the change to the pentropic structure mostly resulted in a change in role only, such as the 4th/19th Prince of Wales's Light Horse , which changed from an armoured unit to
10823-562: The army. Major General George B. McClellan , for example, planned to organize the Army of the Potomac into corps of two or more divisions and about 25,000 soldiers. However, he delayed doing so, partly for lack of experienced officers, and partly for political reasons, until March 1862 when President Lincoln ordered their creation. The exact composition of a corps in the Union Army varied during
10960-605: The brigade pattern were created in the Belorussian Military District (Western TVD/Strategic Direction) and the 48th Separate Guards Army Corps in the Transbaikal Military District , but abandoned after a few years. The Soviet Air Forces used ground terminology for its formations down to squadron level. As intermediates between the aviation division and the air army were corps—these also had three air divisions each. An Air Defence Corps ('KPVO')
11097-440: The changing strategic environment, and the requirement for a higher readiness force available to support collective security goals. Since then, Australian defence policy has been focused more upon the Regular Army, and there has been considerable debate about the role of the Army Reserve within defence planning circles. As the strategic situation has evolved in the post Cold War era, the organisation, structure, training and role of
11234-495: The corps formed during World War I (I and III Corps) and World War II (XVIII Airborne Corps). On 12 February 2020, it was announced that the Army was reactivating V Corps to bolster the presence of US forces in Europe. The first field corps in the United States Army were legalized during the American Civil War by an act of Congress on 17 July 1862, although the term had been used previously to refer to any large portion of
11371-432: The corps. This meant that either civilian workers had to be hired or line soldiers detailed from their units to carry out the necessary tasks. Initially, corps were numbered in relation to their field army, such as I Army Corps, Army of the Potomac. After a while these numerical designations became unique to each corps regardless of the army to which they were assigned. Although designated with numbers that are sometimes
11508-427: The cynicism voiced in certain CMF circles about the report. The committee found that the CMF was a hollow shell of its former self, depleted in numbers and in equipment and unable to adequately fulfil its tasks. However, it still found that there was a role for the CMF to play in the strategic environment that existed at the time, although it would no longer be called upon to provide the base upon which mobilisation in
11645-589: The decision to recruit the AIF on the basis of voluntary enlistment. Because the army in 1914 was largely made up of young men aged between 19 and 21 who had been enlisted under this scheme, and due to the provisions of the Defence Act that precluded sending conscripts overseas, upon the outbreak of the war it was necessary for the Australian government to raise a separate force, outside the Citizen Forces organisation for service overseas. Regardless, it has been estimated that up to 50,000 militiamen subsequently enlisted in
11782-506: The defence of Australia came from the militia, which was at that stage an organisation of some 265,000 men organised into five infantry and two cavalry divisions. Despite earlier derision, a number of Militia units went on to perform with distinction during the Pacific War , especially in 1942, when they fought Japanese forces in New Guinea. As the situation in the Pacific worsened in July 1942 and
11919-467: The divisional structure was maintained, it was little more than a skeleton force as units found their numbers dropping drastically. In 1929, following the election of the Scullin Labor government, the compulsory training scheme was abolished and in its place a new system was introduced whereby the CMF would be maintained on a part-time, voluntary basis only. At this time it was also decided to change
12056-419: The emphasis placed upon mounted units in the new command structure. However, following a number of strategic and political "scares", defence matters slowly began to take on more primacy in the Australian psyche before a review of defence needs was made in 1909 by Field Marshal Lord Kitchener . The result of this review was the realisation of the need to build a credible defence force that could not only defend
12193-467: The end of World War I, the units that had been raised as part of the AIF were disbanded, and the focus of Australian defence planning returned once more to the maintenance of the Citizen Forces. To this end, a review of defence requirements in 1920 established the need for Australia to be able to field a force of approximately 270,000 men in the event of a war, of which half of this would be maintained in peacetime through compulsory enlistment, i.e. in essence
12330-454: The entry of Japan into the war the threat to Australia became more direct and a number of Militia units were called upon to fight in New Guinea and other areas of the South West Pacific. Following the end of World War II, however, the decision was made to establish a permanent standing defence force and the role of Reserve forces was reduced to the point where for a while their relevance was called into question. Recently, however, there has been
12467-693: The eruption of the Philippine–American War ), and like the corps of the Civil War, their lineage ends at that point. During World War I, the American Expeditionary Forces (AEF) adopted the common European usage of designating field corps by Roman numerals . Several " corps areas " were designated under the authority of the National Defense Act of 1920 , but played little role until the Army's buildup for World War II. While some of
12604-422: The express purpose of sending these recruits overseas as Australia's commitments in the region required a large-scale increase in the Army. Additionally, instead of being used to fill the ranks of the CMF, the scheme was essentially used to expand the Regular Army. Due to the terms of service, national servicemen were required to serve two years full-time in Regular Army units, after which they were required to serve
12741-535: The first formal combined-arms groupings of divisions with reasonably stable manning and equipment establishments. Napoleon I first used the corps d'armée in 1805. The use of the corps d'armée was a military innovation that provided Napoleon I with a significant battlefield advantage in the early phases of the Napoleonic Wars . The corps was designed to be an independent military group containing cavalry, artillery and infantry, and capable of defending against
12878-610: The first formed Army Reserve unit to see combat since World War II when it was deployed to Afghanistan as part of the Australian Special Operations Task Group. The initial deployment proved problematic however, with a subsequent inquiry finding that the company had received less support for its pre-deployment preparations than was typical for regular units and that its training was inadequate. The 1st Commando Regiment contributed forces to several other Special Operations Task Group rotations. Between 2004 and 2017
13015-414: The first regular infantry unit of the Australian Army. From that time on as tension within the region increased the strength of the Regular Army increased rapidly in contrast to the CMF, signifying if not an end to Australian military planners' reliance upon citizen soldiers, at least a shift in focus and a realisation of the mistakes that had been made prior to World War II. This would see the CMF providing
13152-408: The following components: These components are basically categories of service, which are determined by the level of training obligation and commitment that a member is required to meet. The majority of Australian Army Reserve units are under the command of the 2nd Division in six state-based brigades. There are also many Reservists serving on full-time service within Regular Army units, performing
13289-493: The following year to 16,202 and to 32,779 in 1950. In March 1951, a system of compulsory national service was re-established. The reintroduction of this conscription scheme saw the numbers of the CMF rise substantially but its management and administration required the allocation of a large number of resources and personnel from the Regular Army at a time when the army Regular Army already heavily committed in Korea and Malaya and so
13426-411: The government decided to double the strength of the Militia as war clouds began to loom on the horizon, and late in the year a recruiting campaign was launched that saw the size of the Militia increase from 35,000 to 43,000 men over the space of three months. This trend continued into 1939 and by midway through the year there were over 80,000 men serving on a part-time voluntary basis. Nevertheless, there
13563-404: The government to implement those recommendations that could assist in achieving this goal, units that were unable to meet attendance requirements were disbanded or amalgamated with others, thus further diffusing the community links units had established in their local areas and thus further impacting upon recruitment and retention. Further, the decision was made to abolish the old CMF divisions, as
13700-547: The government was very keen for the demobilisation process to be completed as quickly as possible. Defence issues were not given a high priority as people tried to rebuild their lives after the war and as such it was not until 1948 that the CMF was reformed. Subsequent reviews of defence policy and the strategic situation in South East Asia after the war had resulted in the formation of the Australian Regiment in 1948,
13837-864: The hat badge and lanyard of their corps (e.g. a clerk posted to an infantry battalion would wear the hat badge of the Royal Australian Ordnance Corps but would wear the lanyard of the battalion they are posted to). In Canada , with the integration of the Canadian Army into the Canadian Forces , the British corps model was replaced with personnel branches , defined in Canadian Forces Administrative Orders (CFAOs) as "...cohesive professional groups...based on similarity of military roles, customs and traditions." CFAO 2-10) However,
13974-559: The initial transfer of forces in March 1901, further progress was slow as administrative and legislative instruments took time to develop. Indeed, it was not until 1 March 1904 that the Defence Act 1903 was proclaimed, providing the Commonwealth Military Forces a statutory framework within which they could operate. Amidst a background of political manoeuvring and personal agendas, the military forces were eventually reorganised into
14111-447: The largest battalion—the 30th/51st Battalion—had just 412 personnel of all ranks, while the 11th/16th Battalion, which was the smallest, had only 156 men. Financially the Militia was neglected also. Despite the upturn in the economic situation in the early 1930s there was little financial respite for the Militia in this time. As the situation continued to improve, however, the defence vote was increased steadily after 1935. Indeed, in 1938
14248-468: The lower numbered corps were used for various exercises, the inter-war years corps served mostly as a pool of units. During that war, the Marine Corps organized corps headquarters for the first time, the I Marine (later III Amphibious Corps ) and V Amphibious Corps . The Army ultimately designated 25 field corps (I–XVI, XVIII–XXIV, XXXVI, and I Armored Corps ) during World War II. After the Korean War ,
14385-454: The men of the AIF units, with militiamen sometimes being labelled as "chocolate soldiers" or "koalas". This changed dramatically, however, following the entry of Japan into the war on 8 December 1941, with the attack on Pearl Harbor and on the British forces in Malaya . Suddenly the war was brought much closer to Australia's borders, and there was a perception that Japan might attempt to invade
14522-425: The name of the force to the Militia, as it was felt that the latter name implied voluntary service (rather than compulsory national service). The force would be based upon the five divisions of the old AIF, although it was decided to limit the overall number of units. This force would also be armed with modern weapons and equipment. That, at least, was the promise, however, in reality this never came to fruition and to
14659-512: The nation, but also possibly contribute to the Imperial defence system (although this later realisation remained little more than a consideration on paper only). The review also validated the compulsory military training scheme that was to be introduced in 1910, which was directly responsible for expanding the Citizen Forces by up to 50 percent in the three years prior to the outbreak of World War I . Separately then-Brigadier Kenneth Mackay CB VD
14796-460: The number is often indicated in Roman numerals (e.g., VII Corps ). The Australian and New Zealand Army Corps was raised in 1914, consisting of Australian and New Zealand troops, who went on to fight at Gallipoli in 1915. In early 1916, the original corps was reorganized and two corps were raised: I ANZAC Corps and II ANZAC Corps . In the later stages of World War I, the five infantry divisions of
14933-601: The operation there were only 100 Reservists available to fill positions in INTERFET , mostly in specialist roles that the Regular Army had trouble providing. As the deployment progressed to a second rotation in April 2000, however, a further 630 Reservists volunteered for full-time service. The deployment to East Timor highlighted the limits of the Australian Defence Force and the need for an Army Reserve that could effectively provide deployable capabilities and individuals to round-out to
15070-407: The personnel manning them were forbidden to enlist in the AIF. This ban was lifted in April 1915 but the presence of a German commerce raider in Australian waters caused a mobilisation from February to April 1916, while another mobilisation occurred in April 1918 for the same reason. Just before the end of World War I, Australia's home forces were reorganised to perpetuate the numerical identities of
15207-495: The place of the corps before and during World War II . An example would be Independent Operational Group Polesie . The groups, as the name indicates, were more flexible and showed greater capacity to absorb and integrate elements of broken units over a period of just a couple days and keep cohesion during the September Campaign than more traditional army units such as divisions, regiments, or even brigades. Wellington formed
15344-428: The provisions of the Defence Act which did not provide for the establishment of a regular infantry force, the notion that the Commonwealth Military Forces would be largely based on a part-time militia was set out in legislation. The lack of importance placed on military matters in Australian political circles continued for some time, and the size of the Australian military in this time continued to fall, in part due to
15481-448: The questions regarding strategy following the wars of diplomacy of the previous three decades. The emergence of the Defence of Australia doctrine as the foundation upon which Australian defence policy would be based following Paul Dibb's 1986 review of Australia's defence capabilities seemed to provide the Reserves with a definite role. Nevertheless, there remained a reluctance to rebuild
15618-660: The remainder of Australia. I Corps headquarters was later assigned control of the New Guinea campaign . In early 1945, when I Corps was assigned the task of re-taking Borneo , II Corps took over in New Guinea. Canada first fielded a corps-sized formation in the First World War; the Canadian Corps was unique in that its composition did not change from inception to the war's end, in contrast to British corps in France and Flanders. The Canadian Corps consisted of four Canadian divisions. After
15755-427: The reserve brigades is also being altered. The reserve artillery regiments will be re-equipped with mortars; the reserve Royal Australian Armoured Corps units will convert from light cavalry to producing crews for Bushmaster Protected Mobility Vehicles , and a brigade operational supply company will be established within each of the combat services support battalions. The Australian Army Reserve currently consists of
15892-462: The rest of the corps were disbanded. In July 1947, all KPVO were renamed anti-aircraft artillery corps. In January 1949, part of these corps was reorganized into air defence areas. From December 1948 to January 1949, all anti-aircraft artillery corps were disbanded. In June 1954, for the defense of the main industrial and economic centers and regions of the USSR, 10 air defence corps were re-created. At
16029-460: The role of the Army Reserve now encompasses the '3 Rs'—that is reinforcement, round-out and rotation. With a total strength in 2005–06 of just 15,579 active personnel, recruitment and retention remain an ongoing issue for Defence planners, nevertheless Reservists continue to have a high training obligation. Since September 2006, in an incentive to rectify sliding retention rates, Reservist salaries have been streamlined with those of regular forces as
16166-679: The role of the Army Reserve would no longer be to act as a skeleton force that would be filled out upon mobilisation, but rather a force that could provide individual sub-units of capability should the need arise to augment the Regular Army. Centralisation of training was also a result of the Millar Report; beforehand, recruit training had been an ad hoc process managed mainly by the units themselves. Other issues such as pay and conditions of service, protection of civilian employment and recruitment and retention were touched upon but remained largely unaddressed until more recently. Further reviews came in this time as Defence planners attempted to grapple with
16303-879: The same as those found in the modern US Army, there is no direct lineage between the 43 Union field corps of the Civil War and those with similar names in the modern era, due to congressional legislation caused by the outcry from veterans of the Grand Army of the Republic during the Spanish–American War . In the Confederate States Army , field corps were authorized in November 1862. They were commanded by lieutenant generals, and were usually larger than their Union Army counterparts because their divisions contained more brigades, each of which could contain more regiments. All of
16440-452: The same time, in addition to anti-aircraft artillery formations, fighter aviation regiments and divisions were included in the corps. Since the late 1950s, anti-aircraft artillery units have been replaced by anti-aircraft missile formations and formations of radio engineering troops. Searchlight and barrage balloon units were also abolished. In the Warsaw Pact countries, groupings similar to
16577-455: The same time, the Militia battalions of the 7th Brigade played a key role in the Battle of Milne Bay , when Australian and United States forces defeated the Japanese in a large-scale battle for the first time during the war. After 1940, use of the term "Militia" to describe the part-time military forces waned and by 1942 the term "Citizen Military Forces" (CMF) had become more common. Later in
16714-513: The scheme was suspended in 1959. This was a significant blow to the CMF and its strength fell by more than half in that year to 20,000 men. Further changes came with the introduction of the pentropic (five battle group) division into the Australian Army in 1960. This proved a disaster for the CMF, as wholesale changes were made and units removed from the order of battle. Seven artillery regiments were disbanded from an original total of 17, while 31 infantry battalions were reduced to 17. This excluded
16851-412: The senior-most artillery officer. In general, the other field armies tended to model their organization after the Army of the Potomac, including the gradual development of corps. Corps were commanded by major generals because Congress refused to promote officers past that grade (with the exception of Ulysses S. Grant to lieutenant general in 1864). To assist with their command, generals were allowed
16988-444: The six Army Reserve brigades are being paired with the regular brigades. The 4th and 9th Brigades will partner with the 1st Brigade , the 5th and 8th Brigades with the 7th Brigade , and the 11th and 13th Brigades with the 3rd Brigade . The pairs of Army Reserve brigades will be expected to be able to provide a battalion -sized force upon mobilisation during the regular brigade's 12 month 'ready' phase. The structure of
17125-406: The units of the AIF and serving as a valuable link to the traditions and service of earlier units. Nevertheless, many CMF soldiers felt that the introduction of these regiments reduced the Army's links to the community due to the move away from the traditional regionally based system and as a result many of these soldiers chose to leave the organisation. In 1965, as the pentropic system was abandoned,
17262-688: The war, the Defence (Citizen Military Forces) Act 1943 , officially referring to the organisation as the CMF, was passed to change the law to allow the transfer of Militia or CMF units to the AIF, if 65 percent or more of their personnel had volunteered for overseas service. Additionally, changes to the Act meant that Militia units were able to serve anywhere south of the Equator in the South West Pacific Area (SWPA), excluding western Java and northern Borneo, and as
17399-471: The war, the tank and mechanized corps were re-rated as divisions. During the reforms of 1956–58, most of the corps were again disbanded to create the new combined arms and tank armies. A few corps were nevertheless retained. The Vyborg and Archangel Corps of the Leningrad Military District were smaller armies with three low-readiness motorized rifle divisions each. In the 1980s "Unified Corps" on
17536-413: The war, though it usually consisted of between two and six division (on average three) for approximately 36,000 soldiers. After Ambrose Burnside was given command of the Army of the Potomac in November 1862, he reorganized it into three "grand divisions" of two corps and a cavalry division each, but this structure was abolished when Joseph Hooker took over February 1863. This also led to the creation of
17673-462: Was a serious shortage of equipment and as a result, when World War II broke out in September 1939 the Militia was by no means an effective fighting force and the nation as a whole was not as well prepared for war as it had been in 1914. Following the outbreak of the war in Europe, the government's immediate response was to announce on 5 September 1939 that it would begin calling up 10,000 militiamen at
17810-471: Was abolished in 1996 by the newly elected Howard government . By the time that the opening phases of the East Timor operation began in 1999, the issue regarding the purpose of the Army Reserve still had not been resolved. Instead of being able to provide formed units to augment the Regular Army, the Reserves was reduced to providing individuals for round-out purposes only. As a result, in the initial phase of
17947-574: Was apparently unable to handle the formations, and the armies and corps were integrated. Rifle corps were re-established during the war after Red Army commanders had gained experience handling larger formations. Before and during World War II, however, Soviet armoured units were organized into corps. The pre-war mechanized corps were made up of divisions. In the reorganizations, these "corps" were reorganized into tank brigades and support units, with no division structure. Owing to this, they are sometimes, informally, referred to as "brigade buckets". After
18084-475: Was appointed to draw up plans for the Australian Army Reserve in 1915, and became its first director-general in 1916. Undoubtedly, the scheme proved to have numerous benefits, as many of these youths went on to serve in the First AIF during World War I and the expanded organisation allowed citizen forces officers more experience in commanding formed bodies of men. However, it was the main factor contributing to
18221-745: Was held at corps, or army level or higher. The corps became the basic tactical unit of the NRA having strength nearly equivalent to an allied division . The modern People's Liberation Army Ground Force group army ( 集团军 ) is the closest equivalent of a corps. After the military reforms of the early 2010s, a typical PLA group army consists of six combined arms brigades, plus additional artillery, air defence, engineering, sustainment, special operations and army aviation assets. Each formation contains approximately 30,000 combat troops and several thousands more supporting personnel. The French Army under Napoleon I used corps-sized formations ( French : corps d'armée ) as
18358-416: Was made to disband or amalgamate a number of units and five infantry battalions and two light horse regiments were removed from the order of battle. The following year, nine more infantry battalions were disbanded. Between 1929 and 1937, the number of soldiers within the Militia who could provide effective service was well below the force's actual on paper strength as many soldiers were unable to attend even
18495-477: Was still large-scale opposition to the concept of conscription and the provisions of the Defence Act still precluded conscripts from serving outside Australian territory, so it was announced that this force would be raised from volunteers only and would not be raised directly from the Militia. Conscripts, however, were required to serve in the Militia, with the result being that the Militia's ranks were filled with both volunteers and conscripts during this time. As
18632-485: Was the case during World War I, many members of the Militia would go on to serve in the Second AIF . Nevertheless, for a period of time the government attempted to limit the number of militiamen transferring across to the AIF to build defences at home against concerns that Britain might not be able to fulfil its pledge to defend Singapore in the event of an attack there by the Japanese. As such, once again Australia maintained
18769-413: Was used almost in all European armies after Battle of Ulm in 1805. In Prussia it was introduced by Order of His Majesty ( German : Allerhöchste Kabinetts-Order ) from 5 November 1816, in order to strengthen the readiness to war. The Indian Army has 14 corps , each commanded by a general officer commanding (GOC), known as the corps commander, who holds the rank of lieutenant general . Each corps
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