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Pacific campaign

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77-563: Pacific campaign or Pacific campaigns, usually refers to the Pacific War (1941–1945): campaigns involving Allied and Axis forces, in the Pacific and Asia during World War II. Within the context of World War II, "Pacific campaigns" include: Pacific theater of operations is a generic term, in US military history, for all campaigns in the Pacific during World War II. Pacific campaign may also refer to

154-755: A bombing of the city of Darwin on 19 February, which killed at least 243 people. At the Battle of the Java Sea in late February and early March, the IJN defeated the main ABDA naval force, under Admiral Karel Doorman . The Dutch East Indies campaign ended with the surrender of Allied forces on Java and Sumatra. In March and April, an IJN carrier force launched a raid into the Indian Ocean . British Royal Navy bases in Ceylon were hit and

231-752: A cabinet decision on 10 December 1941, to refer to both the war with the Western Allies and the ongoing war in China. This name was released to the public on 12 December, with an explanation that it involved Asian nations achieving their independence from the Western powers through armed forces of the Greater East Asia Co-Prosperity Sphere . Japanese officials integrated what they called the Japan–China Incident ( 日支事変 , Nisshi Jihen ) into

308-775: A daunting task. Part of Stratemeyer's command, the Tenth Air Force, had been integrated with the RAF Third Tactical Air Force in India in December 1943 and was tasked with a number of roles in support of a variety of allied forces. Another component, the US Fourteenth Air Force in China, was under the jurisdiction of Generalissimo Chiang Kai-shek as China theater commander. Although the India-China Division of

385-494: A defensive perimeter to absorb and defeat Allied counterattacks; Japanese decisonmakers believed such a military situation would lead to a negotiated peace that would preserve Japanese territorial gains. Japanese planning divided the early war into two operational phases. The First Operational Phase was further divided into three separate parts in which the major objectives of the Philippines, British Malaya, Borneo, Burma, Rabaul and

462-721: A four-month campaign. The Japanese achieved major military victories, but world opinion—in particular in the US—was hostile to Japan's invasion, especially after the Panay incident . In addition, the Japanese had failed to destroy the Chinese army, which continued to resist from the new Nationalist capital in Chongqing , or in the case of the Communists, Yan'an . In 1939, Japanese forces tried to push into

539-496: A halt. The Japanese media, influenced by military propagandists, began to refer to the embargoes as the " ABCD line " ("American-British-Chinese-Dutch"). The Japanese Imperial General Headquarters (GHQ) began planning for a war with the Western powers in April or May 1941. Japan increased its naval budget and placed large formations of the Army, along with their attached air components, under

616-470: A major armed clash in January 1941 , effectively ending their co-operation. Japanese strategic bombing efforts mostly targeted large Chinese cities such as Shanghai, Wuhan , and Chongqing , with around 5,000 raids from February 1938 to August 1943. Japan's strategic bombing campaigns killed between 260,000 and 350,934 non-combatants . As early as 1935, Japanese military strategists had concluded that

693-686: A military alliance with Germany and Italy, becoming one of the three main Axis Powers . The war entered a new phase with Japanese defeats at the Battle of Suixian–Zaoyang , the 1st Battle of Changsha , the Battle of Kunlun Pass and the Battle of Zaoyi . After these victories, Chinese nationalist forces launched a large-scale counter-offensive in early 1940; however, due to a lack of military-industrial capacity, they were repulsed in late March 1940. In August 1940, Chinese communists launched an offensive in Central China ; in retaliation, Japan instituted

770-669: A new obsession for him. "On April 14, 1942, William Donovan , as Coordinator of Information (forerunner of the Office of Strategic Services ), activated Detachment 101 for action behind enemy lines in Burma . The first unit of its kind, the Detachment was charged with gathering intelligence, harassing the Japanese through guerrilla actions , identifying targets for the Army Air Force to bomb, and rescuing downed Allied airmen. Because Detachment 101

847-403: A systematic firebombing of Japanese cities. Chinese Nationalist leader Chiang Kai-shek realized it was all fantasy. On the other hand, there were vast sums of American dollars available if he collaborated. He did so and managed to feed his starving soldiers, but they were so poorly equipped and led that offensive operations against the Japanese in China were impossible. However, Chiang did release

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924-673: The 1st Air Commando Group . Within Eastern Air Command, Air Marshal Sir John Baldwin commanded the Third Tactical Air Force, originally formed to provide close air support to the Fourteenth Army. Baldwin was later succeeded by Air Marshal Sir Alec Coryton . U.S. Brigadier-General Howard C. Davidson and later Air Commodore F. J. W. Mellersh commanded the Strategic Air Force. In the new command, various units of

1001-496: The 5307th Composite Unit (Provisional) , popularly known as "Merrill's Marauders", and the 5332d Brigade, Provisional or 'Mars Task Force', which assumed the Marauders' mission. Japanese policy towards China had long been a source of international controversy. Western powers had exploited China through the open door policy , advocated by United States diplomat William Woodville Rockhill , while Japan intervened more directly, creating

1078-535: The British Fourteenth Army , under the command of General William Slim , could be co-ordinated. However, in practice, Gen. Stilwell never agreed to this arrangement. Stilwell was able to do this because of his multiple positions within complex command structures, including especially his simultaneous positions of Deputy Supreme Allied Commander South East Asia, and Chief of Staff to Chinese leader Generalissimo Chiang Kai-shek . As SEAC's deputy leader, Stilwell

1155-470: The Burma Road . Moving north, the Japanese took Tounggoo and captured Lashio in northern Burma on 29 April. The British, primarily concerned with India, looked to Burma as the main theater of action against Japan and wanted Chinese troops to fight there. The United States conjured up visions of millions of Chinese soldiers who would hold the Japanese then throw them back, while providing close-in airbases for

1232-627: The Chinese Expeditionary Force of two Chinese armies for action in Burma under Stilwell . Due to conflicts between Chiang, the British, Stilwell, and American General Claire Chennault , as well as general ill-preparedness against the more proficient Japanese army, the Burma defense collapsed. Stilwell escaped to India, but the recovery of Burma and construction of the Ledo Road to supply China became

1309-761: The Declaration by United Nations on 1 January 1942, the Allied governments appointed the British General Archibald Wavell to the American-British-Dutch-Australian Command (ABDACOM), a supreme command for Allied forces in Southeast Asia. This gave Wavell nominal control of a huge force, albeit one that was thinly spread across a vast area, from Burma to the Philippines to northern Australia. Other regions, including India, Hawaii, and

1386-785: The European Theater of Operations , the CBI was never a " theater of operations " and did not have an overall operational command structure. Initially U.S. land units were split. Those in China were technically commanded by Generalissimo Chiang Kai-shek , as Stillwell was Chief of Staff to the Supreme Allied Commander in China. When the GALAHAD force (later to become the 5307th Composite Unit (Provisional)) arrived in Bombay in October 1943, it came under

1463-629: The Japanese invasion of Manchuria . However, it is more widely accepted that the Pacific War itself began on 7 December (8 December Japanese time) 1941, when the Japanese simultaneously attacked American military bases in Hawaii , Wake Island , Guam , and the Philippines , the British colonies of Malaya , Singapore , and Hong Kong , and invaded Thailand . The Pacific War saw the Allies pitted against Japan,

1540-581: The Joint Chiefs of Staff in Washington, D.C., and had no command relationship with any authority in India. However, XX Bomber Command remained totally dependent on Eastern Air Command for supplies, bases, ground staff, and infrastructure support. The B-29 force included the 1st Photo Squadron , and the 58th Bombardment Wing at Chakulia , Kharagpur , with the 40th ( Chakulia Airport ), 444th , 462nd , and 468th Bombardment Groups . While in India, XX BC

1617-736: The Khmer Issarak , and the Hukbalahap . The Soviet Union fought two short, undeclared border conflicts with Japan in 1938 and again in 1939 , then remained neutral through the Soviet–Japanese Neutrality Pact of April 1941, until August 1945 when it (and Mongolia ) joined the rest of the Allies and invaded the territory of Manchukuo , China, Inner Mongolia , the Japanese protectorate of Korea and Japanese-claimed territory such as South Sakhalin . Mexico provided air support in

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1694-850: The Kwantung Army to oversee its occupation of Manchukuo and the China Expeditionary Army during the Second Sino-Japanese War, created the Southern Expeditionary Army Group at the outset of its conquests of South East Asia. This headquarters controlled the bulk of the Japanese Army formations which opposed the Western Allies in the Pacific and South East Asia. In 1931, without declaring war, Japan invaded Manchuria , seeking raw materials to fuel its growing industrial economy. By 1937, Japan controlled Manchuria and

1771-844: The Pacific Ocean , the Indian Ocean , and Oceania . It was geographically the largest theater of the war, including the Pacific Ocean theater , the South West Pacific theater , the Second Sino-Japanese War , and the Soviet–Japanese War in the last few months of the war. The Second Sino-Japanese War between the Empire of Japan and the Republic of China had been in progress since 7 July 1937, with hostilities dating back to 1931 with

1848-637: The South West Pacific . US sources refer to two theaters within the Pacific War: the Pacific theater and the China Burma India Theater (CBI). However, these were not operational commands. In the Pacific, the Allies divided operational control of their forces between two supreme commands, known as Pacific Ocean Areas and Southwest Pacific Area . The Imperial Japanese Navy (IJN) did not integrate its units into permanent theater commands. The Imperial Japanese Army (IJA), which had already created

1925-661: The Soviet Far East . They were defeated in the Battle of Khalkhin Gol by a mixed Soviet and Mongolian force led by Georgy Zhukov . This caused the Japanese to abandon attempts to expand to the north , while Soviet aid to China ceased as a result of the Soviet–Japanese Neutrality Pact. In September 1940, Japan decided to invade French Indochina , which was controlled at the time by Vichy France . On 27 September Japan signed

2002-813: The Thai government signed an armistice and entered an alliance with Japan. Although Japan declared war on the United States and the British Empire , the declaration was not delivered until after Japanese forces had already struck British and American targets. In the early hours of 7 December (Hawaiian time), carrier-based Japanese aircraft launched a surprise, large-scale air strike on the U.S. Pacific Fleet's anchorage at Pearl Harbor in Honolulu, which knocked eight American battleships out of action, destroyed 188 American aircraft, and killed 2,403 Americans. The Japanese believed that

2079-485: The largest naval battles in history and massive Allied air raids over Japan , as well as the atomic bombings of Hiroshima and Nagasaki . Japan surrendered unconditionally on 15 August 1945 and was occupied by the Allies. Japan lost its former possessions in Asia and the Pacific and had its sovereignty limited to the four main home islands and other minor islands as determined by the Allies. In Allied countries during

2156-571: The " Three Alls Policy " ("Kill all, Burn all, Loot all") in occupied areas, killing at least 2.7 million civilians. By 1941 the conflict had become a stalemate. Although Japan had occupied much of northern, central, and coastal China, the Nationalist Government had retreated to the interior and set up a provisional capital at Chongqing , while the Chinese communists remained in control of base areas in Shaanxi . Japanese offensive action against

2233-691: The AAF's Air Transport Command received its tonnage allocations from Stratemeyer as Stilwell's deputy, ICD reported directly to Headquarters ATC in Washington, D.C. In the spring of 1944, the arrival of Boeing B-29 Superfortresses in the theater, presaged a major offensive against Japan. XX Bomber Command of the Twentieth Air Force was tasked with the strategic bombing of Japan under Operation Matterhorn . It engaged in very-long-range Boeing B-29 Superfortress bombardment operations against Japan, Formosa , China, Indochina and Burma . It reported directly to

2310-537: The Allied embargo. This was known as the Southern Plan . It was decided—because of the close relationship between the U.K. and the U.S., and the belief that the U.S. would inevitably become involved in the ongoing war in Europe—that Japan would also seize the Philippines, Wake Island and Guam . Japan had initially planned for a limited war, where Japanese forces would seize key objectives and then establish

2387-526: The Allies staging areas from which to mount a counteroffensive. By November 1941 these plans were mostly complete, and were modified only slightly over the next month. Japanese military planners' expectation of success rested on the United Kingdom and the Soviet Union being unable to effectively respond to a Japanese attack because of the threat posed to each by Nazi Germany; in particular, the Soviet Union

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2464-469: The Americans, faced with such a sudden and massive blow to their naval power in the Pacific, would agree to a negotiated settlement. However, American losses were less serious than initially thought: the three American aircraft carriers were at sea during the attack, and vital naval infrastructure, Honolulu's submarine base, and signals intelligence units were unscathed. The fact that the bombing happened while

2541-776: The British retreated to Imphal in Manipur, abandoning most of their transportation and equipment. They reached Imphal in May just as the monsoon descended, which halted the operations of both sides in the area. Within China, cooperation between the Chinese Nationalists and the Communists had waned from its zenith at the Battle of Wuhan, and the relationship between the two had soured as both attempted to expand their areas of operation and influence. The Japanese exploited this lack of unity to press their offensive operations in China. China Burma India theater Second Sino-Japanese War Taishō period Shōwa period Asia-Pacific Mediterranean and Middle East Other campaigns Coups China Burma India Theater ( CBI )

2618-424: The British-led South East Asia Command (SEAC) and Admiral Lord Mountbatten . However, Stilwell often broke the chain of command and communicated directly with the US Joint Chiefs of Staff on operational matters. When joint allied command was agreed upon, it was decided that the senior position should be held by a British officer because the British had the greatest number of forces in India and Burma (in much

2695-449: The Chinese 38th Division, led by Sun Li-jen . Meanwhile, in the Battle of Yunnan-Burma Road , the Japanese captured Toungoo after hard fighting and sent motorized units to capture Lashio . This cut the Burma Road , which was the western Allies' supply line to Chinese Nationalist troops. Many of Chinese troops were forced either to retreat to India, or withdraw in small parties to Yunnan . Accompanied by large numbers of civilian refugees,

2772-429: The Dutch East Indies were, due to their abundant oil reserves, crucially important for further expansion by the Japanese Empire. By 1940 the Japanese also included Indochina, Malaya, and the Philippines within their concept of the Greater East Asia Co-Prosperity Sphere. Japanese troop build-ups in Hainan, Taiwan, and Haiphong were noted in foreign media, Japanese military officers were increasingly and openly talking about

2849-428: The Dutch East Indies would be occupied. The Second Operational Phase called for further expansion into the South Pacific by seizing eastern New Guinea, New Britain, Fiji, Samoa, and strategic points in around Australia. In the Central Pacific, Midway Island was targeted, as were the Aleutian Islands in the North Pacific. Japanese strategists believed that the seizure of these key areas would provide defensive depth and deny

2926-438: The Greater East Asia War. During the Occupation of Japan (1945–52), these terms were prohibited in official documents (although their informal usage continued). The war became officially known as the Pacific War ( 太平洋戦争 , Taiheiyō Sensō ) . The Fifteen Years' War ( 十五年戦争 , Jūgonen Sensō ) is also used, referring to the period from the Mukden Incident of 1931 through 1945. The major Allied participants were China ,

3003-500: The IJN and IJA launched simultaneous surprise attacks on the United States and the British Empire on 7 December (8 December in Asia/West Pacific time zones). The locations of this first wave of Japanese attacks included the American territories of Hawaii, the Philippines , Guam , and Wake Island and the British territories of Malaya , Singapore , and Hong Kong . Concurrently, Japanese forces invaded southern and eastern Thailand and were resisted for several hours, before

3080-459: The Japanese puppet states of Manchukuo (consisting of most of Manchuria ), and the collaborationist Wang Jingwei regime (which controlled the coastal regions of China), respectively. Japan conscripted many soldiers from its colonies of Korea and Taiwan . Collaborationist security units were also formed in Hong Kong , Singapore , the Philippines , the Dutch East Indies , British Malaya , British Borneo , former French Indochina (after

3157-563: The Japanese on 15 February 1942. About 130,000 Indian, British, Australian and Dutch personnel became Japanese prisoners of war. Bali and Timor fell in February. The rapid collapse of Allied resistance left the "ABDA area" split in two. Wavell resigned from ABDACOM on 25 February, handing control of the ABDA Area to local commanders and returning to the post of Commander-in-Chief, India . Meanwhile, Japanese aircraft had all but eliminated Allied air power in Southeast Asia and were carrying out air attacks on northern Australia , beginning with

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3234-594: The Philippines , Malaya , Singapore , Hong Kong , Guam , Wake Island , and Thailand . Japan cut off Allied supplies to China that had been coming through Burma . China could be supplied only by flying over the Himalaya mountains (" The Hump ") from India, or capturing territory in Burma and building a new road—the Ledo Road . In 1941 and 1942, Japan was overextended. Its naval base could not defend its conquests, and its industrial base could not strengthen its navy. To cut off China from Allied aid, it went into Burma and captured Rangoon on 8 March 1942, cutting off

3311-426: The Royal Air Force and the U.S. Tenth Air Force worked side-by-side. In the autumn of 1943 SEAAC had 48 RAF and 17 USAAF squadrons; by the following May, the figures had risen to 64 and 28, respectively. At Eastern Air Command, Gen. Stratemeyer had a status comparable to that of Stilwell. Coordinating the efforts of the various allied air components while maintaining relations with diverse command structures proved

3388-422: The US was not officially at war caused a wave of outrage across the country. Japan's fallback strategy, relying on a war of attrition against the United States, was beyond the Imperial Japanese Navy's capabilities. Opposition to war in the United States vanished after the attack. On 8 December, the United Kingdom, the United States, Canada, and the Netherlands declared war on Japan, followed by Australia

3465-502: The United States and the British Empire . China had already been engaged in a war against Japan since 1937 . The US and its territories, including the Philippine Commonwealth , entered the war after being attacked by Japan . The British Empire was also a major belligerent consisting of British troops along with colonial troops from India as well as from Burma , Malaya , Fiji , Tonga ; in addition to troops from Australia , New Zealand and Canada . The Dutch government-in-exile (as

3542-576: The advance of the Chinese Ledo forces into north Burma in late 1943 meant that he was often out of touch with both his own headquarters and with the overall situation. Not until late 1944, after Stilwell was recalled to Washington, was the chain of command clarified. His overall role, and the CBI command, was then split among three people: Lt Gen. Raymond Wheeler became Deputy Supreme Allied Commander South East Asia; Major-General Albert Wedemeyer became Chief of Staff to Chiang Kai-shek, and commander of US Forces, China Theater (USFCT). Lt Gen. Daniel Sultan

3619-403: The aircraft carrier HMS  Hermes was sunk, along with other Allied ships. The attack forced the Royal Navy to withdraw to the western part of the Indian Ocean, paving the way for a Japanese assault on Burma and India. In Burma, the Japanese captured Moulmein on 31 January 1942, and then drove outnumbered British and Indian troops towards the Sittang River . On 23 February, a bridge over

3696-496: The city, which fell to Japan after three months of fighting. The Japanese continued to push deeper into China, capturing the capital Nanjing in mid-December 1937 and committing atrocities in the Nanjing Massacre , including rape, murder and torture. In March 1938, Nationalist forces won their first victory at Taierzhuang , but the city of Xuzhou was taken by the Japanese in May. In June 1938, Japan deployed about 350,000 troops to invade Wuhan and captured it in October after

3773-407: The command of the Imperial Japanese Navy. Historically, the IJA consumed the majority of the state's military budget (with a 73% - 27% split in 1940), but from 1942 to 1945 the IJA would account for 60% of Japan's military spending, while the IJN would account for 40%. Japan's key initial objective was to seize economic resources in the Dutch East Indies and Malaya, in order to alleviate the effects of

3850-467: The defense of China to be vital to the defense of the United States. Over the summer, as Japan moved south into French Indo-China , the U.S., Britain and the Netherlands instituted an oil embargo on Japan, cutting off 90% of its supplies. The embargo threatened the operations of the Kwantung Army , which had over a million soldiers deployed in China. Japan responded with a tightly co-ordinated offensive on 7/8 December, simultaneously attacking Pearl Harbor ,

3927-405: The following campaigns in other wars: Pacific War Allied occupation of Japan Second Sino-Japanese War Taishō period Shōwa period Asia-Pacific Mediterranean and Middle East Other campaigns Coups The Pacific War , sometimes called the Asia–Pacific War or the Pacific Theater , was the theater of World War II that was fought in eastern Asia,

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4004-402: The form of the 201st Fighter Squadron and Free France sent naval support in the form of Le Triomphant and later the Richelieu . The Axis -aligned states which assisted Japan included the authoritarian government of Thailand . Also involved were members of the Greater East Asia Co-Prosperity Sphere, which included the Manchukuo Imperial Army and Collaborationist Chinese Army of

4081-406: The formation of ACSEA in November 1943, and the middle of August 1944, American and British forces operating in Burma destroyed or damaged more than 700 Japanese aircraft with a further 100 aircraft probably destroyed. This achievement considerably reduced dangers to Air Transport Command cargo planes flying in support of the Hump airlift operation. By May 1944, EAC resupply missions in support of

4158-519: The latter aided by Thailand and to a lesser extent by the Axis powers , Germany and Italy . The Japanese achieved great success in the initial phase of the campaign, but were gradually driven back using an island hopping strategy. The Allies adopted a Europe first stance, giving first priority to defeating Nazi Germany. The Japanese had great difficulty replacing their losses in ships and aircraft, while American factories and shipyards produced ever increasing numbers of both. Fighting included some of

4235-499: The next day. Thailand, with its territory already serving as a springboard for Japan's Malayan Campaign , surrendered within hours of the Japanese invasion. The government of Thailand formally allied with Japan on 21 December. To the south, the IJA seized the British colony of Penang on 19 December, encountering little resistance. Hong Kong was attacked on 8 December and fell to Japanese forces on 25 December 1941. American bases on Guam and Wake Island were seized by Japan at around

4312-431: The overthrow of the French regime in 1945 ), as well as Timorese militia . Germany and Italy both had limited involvement in the Pacific War. The German and the Italian navies operated submarines and raiding ships in the Indian and Pacific Oceans, notably the Monsun Gruppe . Between 1942 and 1945, there were four main areas of conflict in the Pacific War: China, the Central Pacific , South-East Asia and

4389-403: The possessor of the Dutch East Indies ) was also involved. All of these were members of the Pacific War Council . From 1944 the French commando group Corps Léger d'Intervention also took part in resistance operations in Indochina. Some active pro-allied guerrillas in Asia included the Malayan Peoples' Anti-Japanese Army , the Korean Liberation Army , the Free Thai Movement , the Việt Minh ,

4466-554: The prospect of war, and Admiral Sankichi Takahashi was reported as stating that a showdown with the US was necessary. In an effort to discourage Japanese militarism, Western powers including Australia, the US, Britain, and the Dutch government in exile , which controlled the Dutch East Indies, stopped selling oil , iron ore, and steel to Japan. In Japan, the government and Japanese nationalists viewed these embargoes as acts of aggression; imported oil made up about 80% of domestic consumption, without which Japan's economy would grind to

4543-451: The puppet-state of Manchukuo . By 1937, Japan was engaged in a full-scale war of conquest in China . The infamous Rape of Nanking galvanized Western opinion and led to direct financial aid for the Kuomintang (Nationalists) and increasing economic sanctions against Japan. In 1941, the U.S. made a series of decisions to support China in its war with Japan: Lend Lease supplies were provided after President Franklin D. Roosevelt announced

4620-443: The rest of Australia, remained under local commands. On 15 January, Wavell moved to Bandung in Java to assume control of ABDACOM. In January, Japan invaded British Burma, the Dutch East Indies, New Guinea, and the Solomon Islands, and captured Manila, Kuala Lumpur and Rabaul . After being driven out of Malaya, Allied forces in Singapore attempted to resist the Japanese during the Battle of Singapore, but were forced to surrender to

4697-470: The retreating and regrouping Chinese forces was largely stalled by the mountainous terrain in southwestern China, while the Communists organized widespread guerrilla and saboteur activities in northern and eastern China behind the Japanese front line. Japan sponsored several puppet governments , one of which was headed by Wang Jingwei . Conflicts between Chinese Communist and Nationalist forces vying for territorial control behind enemy lines culminated in

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4774-450: The river was demolished prematurely, stranding most of an Indian division. On 8 March, the Japanese occupied Rangoon . The Allies attempted to defend Central Burma, with Indian and Burmese divisions holding the Irrawaddy River valley and the Chinese Expeditionary Force in Burma defending Toungoo . On 16 April, 7,000 British soldiers were encircled by the Japanese 33rd Division during the Battle of Yenangyaung , but subsequently rescued by

4851-455: The same time. British, Australian, and Dutch forces, already drained of personnel and matériel by two years of war with Germany, and heavily committed in the Middle East, North Africa, and elsewhere, were unable to provide more than token resistance. Two major British warships, the battlecruiser HMS  Repulse and the battleship HMS  Prince of Wales , were sunk by a Japanese air attack off Malaya on 10 December 1941. Following

4928-493: The same way as the US did in the Pacific War ). Admiral Lord Mountbatten was appointed as the Supreme Allied Commander of South-East Asia forces in October 1943. Chiang however later objected to deferring to Mountbatten on matters related to operations in China. General Stilwell, who also had operational command of the Northern Combat Area Command (NCAC), a US-Chinese formation, was to report in theory to Gen. George Giffard – commander of Eleventh Army Group – so that NCAC and

5005-401: The term "CBI" was significant in logistical, material and personnel matters; it was and is commonly used within the US for these theaters. U.S. and Chinese fighting forces in the CBI included the Chinese Expeditionary Force , the Flying Tigers , transport and bomber units flying the Hump , including the Tenth Air Force , the 1st Air Commando Group , the engineers who built the Ledo Road ,

5082-656: The theater, with Air Chief Marshal Sir Richard Peirse as Commander-in-Chief. Under Peirse's deputy, USAAF Major General George E. Stratemeyer , Eastern Air Command (EAC) was organized in 1943 to control Allied air operations in Burma, with headquarters in Calcutta . Unlike the strained relations and confusion with Allied ground force commands, air force operations in the CBI were relatively smooth. Relations improved even further after new U.S. military aid began arriving, together with capable USAAF officers such as Brigadier General William D. Old of CBI Troop Carrier Command, and Colonels Philip Cochran and John R. Alison of

5159-430: The three original command organizations at Ramgarh.) Headquarters Ramgarh Training Center was responsible for the training of Chinese Army in India, and Headquarters Chinese Army in India was responsible for the activation, organization, administration, and command of Chinese units. After consultation among the Allied governments, Air Command South-East Asia was formed in November 1943 to control all Allied air forces in

5236-420: The war, the "Pacific War" was not usually distinguished from World War II , or was known simply as the War against Japan . In the United States, the term Pacific theater was widely used. The US Armed Forces considered the China Burma India theater to be distinct from the Asiatic-Pacific theater during the conflict. Japan used the name Greater East Asia War ( 大東亜戦争 , Dai Tō-A Sensō ) , as chosen by

5313-425: Was Giffard's superior, but as operational commander of NCAC, Giffard was Stilwell's superior. As the two men did not get on, this inevitably lead to conflict and confusion. Stilwell, however, bitterly resisted [taking orders from Giffard] ... To watch Stilwell, when hard pressed, shift his opposition from one of the several strong-points he held by virtue of his numerous Allied, American and Chinese offices, to another

5390-442: Was a lesson in mobile offensive-defence. Eventually at a SEAC meeting to sort out the chain of command for NCAC, Stilwell astonished everyone by saying "I am prepared to come under General Slim's operational control until I get to Kamaing ". Although far from ideal, this compromise was accepted. Although Stilwell was the control and co-ordinating point for all command activity in the theater, his assumption of personal direction of

5467-566: Was established on 30 June 1942 by General Stilwell, the Commanding General, USAF, CBI, for the training of Chinese troops in India. The Supreme Commander, China Theater, General Chiang Kai-Shek, had approved Ramgarh Cantonment , as the site for a training center to train, equip, and reinforce the Chinese troops that had retreated into India from Burma. The first Chinese troops arrived on 17 July 1942. Headquarters RTC and Hq Camp Ramgarh combined and CG RTC assumed command on 1 February 1943. (These two organizations and Hq Chinese Army in India were

5544-578: Was never larger than a few hundred Americans, it relied on support from various tribal groups in Burma. In particular, the vigorously anti-Japanese Kachin people were vital to the unit's success." Detachment 101's efforts opened the way for Stilwell's Chinese forces, Wingate's Raiders, Merrill's Marauders , and the counter-attack against the Japanese Imperial life-line. US forces in the CBI were administered by General Joseph "Vinegar Joe" Stilwell . However, unlike other combat theaters, for example

5621-587: Was prepared to move deeper into China. The Marco Polo Bridge Incident on 7 July 1937 provoked full-scale war between China and Japan. The Nationalist Party and the Chinese Communists suspended their civil war in order to form a nominal alliance against Japan, and the Soviet Union quickly lent support by providing large amounts of materiel to Chinese troops. In August 1937, Generalissimo Chiang Kai-shek deployed some of his best troops to defend Shanghai against some 300,000 Japanese troops attempting to seize

5698-670: Was promoted, from deputy commander of CBI to commander of US Forces, India–Burma Theater (USFIBT) and commander of the NCAC. The 11th Army Group was redesignated Allied Land Forces South East Asia (ALFSEA), and NCAC was decisively placed under this formation. However, by the time the last phase of the Burma Campaign began in earnest, NCAC had become irrelevant, and it was dissolved in early 1945. Ramgarh Training Center, in Bihar Province, India, an American-staffed, American-operated organisation,

5775-476: Was seen as unlikely to commence hostilities. The Japanese leadership was aware that a total military victory in the traditional sense against the United States was impossible, and instead envisaged that rapid, aggressive and expansive conquest would force the U.S. to agree to a negotiated peace that would recognize Japanese hegemony in Asia. Following prolonged tensions between Japan and the Western powers , units of

5852-419: Was supported logistically by Tenth Air Force and the India-China Division, Air Transport Command . The B-29 groups moved to West Field, Tinian , in early 1945. After a period of reshuffling, Eastern Air Command's air operations began to show results. In August 1944, Admiral Mountbatten said to a press conference that EAC fighter missions had practically swept the Japanese air force from Burmese skies. Between

5929-653: Was the United States military designation during World War II for the China and Southeast Asian or India–Burma (IBT) theaters . Operational command of Allied forces (including U.S. forces) in the CBI was officially the responsibility of the Supreme Commanders for South East Asia or China. In practice, U.S. forces were usually overseen by General Joseph Stilwell , the Deputy Allied Commander in China;

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