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Battle of Hollandia

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24th Infantry Division

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110-556: The Battle of Hollandia (code-named Operation Reckless ) was an engagement between Allies of World War II and Japanese forces during World War II . The majority of the Allied force was provided by the United States, with the bulk of two United States Army infantry divisions being committed on the ground. Air and naval support consisted largely of U.S. assets, although Australia also provided air support during preliminary operations and

220-516: A last stand at Hollandia if he was defeated at Hansa Bay. As an attack on Hollandia was not expected, no plans were prepared to defend the area prior to the Allied landing. Because aircraft carriers had not been previously used to support Allied amphibious landings in the South-West Pacific, in early 1944 the Japanese leadership judged that Hollandia was safe from a direct attack as it was beyond

330-491: A belief that Hansa Bay would be the target of the next Allied amphibious landing and that he could reinforce Hollandia at a later date. After the chief of staff of the Second Area Army travelled to Wewak to deliver Adachi orders in person, he directed that the 66th Infantry Regiment begin moving from Wewak to Hollandia on 18 April; it was expected that this unit would arrive there in mid-June. Adachi continued to plan to make

440-502: A comprehensive defensive plan, and in any event had neither the men nor the resources to carry it out. On the other hand, the Allied operation had been over-insured; concerns over the strength of the Japanese garrison had left the Allies with a four to one advantage in the event. Historian Edward J. Drea attributed the success of the operation largely to MacArthur's bold decision to exploit intelligence gained through code breaking, and judged it

550-608: A domination of the world completely different from any known in world history. The domination at which the Nazis aim is not limited to the displacement of the balance of power and the imposition of the supremacy of one nation. It seeks the systematic and total destruction of those conquered by Hitler and it does not treaty with the nations which it has subdued. He destroys them. He takes from them their whole political and economic existence and seeks even to deprive them of their history and culture. He wishes only to consider them as vital space and

660-638: A government-in-exile in London, with each contributing a contingent of escaped troops. Nevertheless, by roughly one year since Germany's violation of the Munich Agreement, Britain and its Empire stood alone against Hitler and Mussolini. Before they were formally allied, the United Kingdom and the United States had cooperated in a number of ways, notably through the destroyers-for-bases deal in September 1940 and

770-549: A greatly weakened economy and humiliated populace. The Wall Street Crash of 1929 , and the ensuing Great Depression , led to political unrest across Europe, especially in Germany, where revanchist nationalists blamed the severity of the economic crisis on the Treaty of Versailles. The far-right Nazi Party led by Adolf Hitler , which had formed shortly after the peace treaty, exploited growing popular resentment and desperation to become

880-457: A major victory for peace, the open flaunting of its terms demonstrated the failure of appeasement. Britain and France, which had been the main advocates of appeasement, decided that Hitler had no intention to uphold diplomatic agreements and responded by preparing for war. On 31 March 1939, Britain formed the Anglo-Polish military alliance in an effort to avert an imminent German attack on Poland;

990-463: A naval bombardment force. The battle took place between 22 April and 6 June 1944 and formed part of the New Guinea campaign . The operation consisted of two landings, one at Tanahmerah Bay and the other at Humboldt Bay , near Hollandia . The landings were undertaken simultaneously with the amphibious invasion of Aitape ("Operation Persecution") to the east. The battle was an unqualified success for

1100-640: A separate colony. British Malaya covers the areas of Peninsular Malaysia and Singapore , while British Borneo covers the area of Brunei , including Sabah and Sarawak of Malaysia. British Hong Kong consisted of Hong Kong Island , the Kowloon Peninsula , and the New Territories . Territories controlled by the Colonial Office , namely the Crown Colonies , were controlled politically by

1210-651: A staging area for subsequent operations in New Guinea and the Philippines. 2°31′58.8″S 140°43′1.2″E  /  2.533000°S 140.717000°E  / -2.533000; 140.717000 Allies of World War II The Allies , formally referred to as the United Nations from 1942, were an international military coalition formed during World War II (1939–1945) to oppose the Axis powers . Its principal members by

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1320-422: A swamp just 30 yards from the shoreline, and with just one exit trail unsuitable for vehicles, it quickly became congested. Red 1 was found to be better, allowing LVTs and LCMs to come ashore with their infantry charges, but the approaches had to be cleared by engineers to allow the passage of the larger LCMs and even after this had been completed. The beach was narrow, though, and only allowed two LCMs to land at

1430-525: A technique known as combat loading to ensure that the most important stores and equipment could be unloaded quickly. Initial operations commenced in the second week of March 1944 with air raids by aircraft of the U.S. 5th Air Force and the Royal Australian Air Force attacked Japanese airfields along the New Guinea coast from Wewak to the Vogelkop and on Biak Island . In the final days of March,

1540-457: A time, while the even bigger LSTs had to remain offshore where they were cross loaded on to LVTs. As a result of the terrain difficulties, Tanahmerah Bay was quickly written off as a landing site; while the infantry already ashore pressed on to the Sentani plain the remainder of the 24th Division was diverted to Humboldt Bay, which had by this time been secured. After four days under these conditions

1650-520: A two-battalion front, with troops landed in seven waves at two beaches: Red 1 around the Depapre Inlet and Red 2 on the eastern side of the bay. Allied planners believed that the two beaches were connected by a road, and that another road – suitable for vehicle traffic – ran inland towards Lake Sentani. Pre-landing reconnaissance efforts were hampered by the destruction of the Australian scouting party that

1760-599: A vacant territory over which he has every right. The human beings who constitute these nations are for him only cattle. He orders their massacre or migration. He compels them to make room for their conquerors. He does not even take the trouble to impose any war tribute on them. He just takes all their wealth and, to prevent any revolt, he scientifically seeks the physical and moral degradation of those whose independence he has taken away. France experienced several major phases of action during World War II: In Africa these included: French West Africa , French Equatorial Africa ,

1870-507: The 41st Division . The operation was the 24th Infantry Division's first combat assignment after home defense duties in Hawaii and training in Australia, but the 41st Infantry Division had previously taken part in the fighting in New Guinea in 1942–1943 . The ground forces would be supported by two naval bombardment forces. Task Force 74 , under British Rear Admiral Victor Crutchley , consisted of

1980-609: The Anglo-French Supreme War Council to coordinate military decisions. A Polish government-in-exile was set up in London, joined by hundreds of thousands of Polish soldiers, which would remain an Allied nation until the end. After a quiet winter, Germany began its invasion of Western Europe in April 1940, quickly defeating Denmark, Norway, Belgium, the Netherlands, and France. All the occupied nations subsequently established

2090-661: The British Commonwealth : Canada , Australia , New Zealand and South Africa . Consequently, the initial alliance resembled that of the First World War . As Axis forces began invading northern Europe and the Balkans , the Allies added the Netherlands , Belgium , Norway , Greece , and Yugoslavia . The Soviet Union, which initially had a nonaggression pact with Germany and participated in its invasion of Poland , joined

2200-535: The British West Indies , British Honduras , British Guiana and the Falkland Islands . The Dominion of Newfoundland was directly ruled as a royal colony from 1933 to 1949, run by a governor appointed by London who made the decisions regarding Newfoundland. British India included the areas and peoples covered by later India , Bangladesh , Pakistan and (until 1937) Burma/Myanmar , which later became

2310-534: The Eastern Fleet conducted a raid on Japanese positions on the island of Sabang in the Indian Ocean ahead of the landings at Hollandia and Aitape. This attack, which was designated Operation Cockpit , aimed to prevent the Japanese from transferring air units stationed near Singapore to New Guinea. The Eastern Fleet's British and American aircraft carriers raided Sabang on 19 April. This operation had no effect on

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2420-520: The Fast Carrier Force (Task Force 58) attacked Japanese airbases on Palau and islands in the Carolines . Meanwhile, on 30 March and continuing to 3 April these air forces attacked Hollandia itself and the airfields on the Sentani plain . Achieving complete surprise , they were able to destroy 340 aircraft on the ground and 60 more aircraft in the air, leaving the 6th Air Division unable to resist

2530-536: The Joint Chiefs of Staff to bring forward the previously planned landings at Hollandia to 15 April. Approval was granted four days later. MacArthur's plan was bold, as it involved making a large amphibious landing deep behind the front lines in New Guinea. The Joint Chiefs of Staff also directed the United States Pacific Fleet to assign aircraft carriers to provide air support for the landings. The attack

2640-618: The Lend-Lease loan were amended towards the Soviets, to be put in line with British terms. The United States would now expect interest with the repayment from the Soviets, following the initiation of the Operation Barbarossa , at the end of the war—the United States were not looking to support any "postwar Soviet reconstruction efforts", which eventually manifested into the Molotov Plan . At

2750-565: The Tehran conference , Stalin judged Roosevelt to be a "lightweight compared to the more formidable Churchill". During the meetings from 1943 to 1945, there were disputes over the growing list of demands from the USSR. Tensions increased further when Roosevelt died and his successor Harry Truman rejected demands put forth by Stalin. Roosevelt wanted to play down these ideological tensions. Roosevelt felt he "understood Stalin's psychology", stating "Stalin

2860-528: The homeland . The United States felt that the Japanese and German expansion should be contained, but ruled out force until Japan's attack. The Soviet Union, having been betrayed by the Axis attack in 1941, greatly despised German belligerence and the unchallenged Japanese expansion in the East, particularly considering their defeat in previous wars with Japan; the Soviets also recognized, as the U.S. and Britain had suggested,

2970-606: The supercarriers designed for strategic bombing roles from the older fleet carriers delegated limited tactical roles like anti-submarine (CVS) or amphibious warfare (LPH). The following is not an exhaustive list , but does provide context by comparing some examples from three types of fleet carriers active during World War II. The earliest carrier aircraft were designed as fighters, scouts and gunfire observers. Torpedo bombers were developed to slow enemy ships so friendly battleships might catch and sink them. Dive bombing tactics were developed as aircraft strength improved through

3080-408: The 162nd had secured Hollandia and were securing the high ground around their objective, winkling out isolated pockets of resistance with aerial support. There was little resistance initially, but further inland there was some opposition as elements of the 186th Infantry reached the lake by 24 April. Engineers operating amphtracks pushed forward from Jautefa Bay to the lake to carry the infantry around

3190-440: The 1930s, but limited aircraft capacity encouraged production of dual-purpose fighter-bombers or scout-bombers rather than dedicated dive bombers . Japanese and American fleet carriers usually carried fighter squadrons, torpedo bomber squadrons, and dive bomber squadrons through World War II; but British fleet carriers were less likely to include a dive bomber squadron. The fleet carriers' longer range bombers were often used for

3300-459: The 6th Sea Detachment were in the area, and reinforcements were being rapidly transferred there. I Corps under Lieutenant General Robert Eichelberger provided most of the ground forces for the combined Operations Reckless and Persecution. The attack force comprised 84,000 personnel, including 52,000 combat troops, 23,000 support personnel, and a naval task force of 200 vessels of 7th Fleet ’s Task Force 77 under Rear Admiral Daniel Barbey . Of

3410-480: The Allied forces, resulting in a withdrawal by the Japanese to a new strategic defense line in the west of New Guinea and the abandonment of all positions in the east of the island. Hollandia was a port on the north coast of New Guinea, part of the Dutch East Indies , and was the only anchorage between Wewak to the east, and Geelvink Bay to the west. It was occupied by the Japanese during their invasion of

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3520-604: The Allies after the German invasion of the Soviet Union in June 1941. The United States, while providing some materiel support to European Allies since September 1940, remained formally neutral until the Japanese attack on Pearl Harbor in December 1941, after which it declared war and officially joined the Allies. China had already been at war with Japan since 1937 , and formally joined

3630-470: The Allies in December 1941. The Allies were led by the so-called "Big Three"—the United Kingdom, the Soviet Union, and the United States—which were the principal contributors of manpower, resources, and strategy, each playing a key role in achieving victory. A series of conferences between Allied leaders, diplomats, and military officials gradually shaped the makeup of the alliance, the direction of

3740-562: The American Lend-Lease program, which provided Britain and the Soviet Union with war materiel beginning in October 1941. The British Commonwealth and, to a lesser extent, the Soviet Union reciprocated with a smaller Reverse Lend-Lease program. The First Inter-Allied Meeting took place in London in early June 1941 between the United Kingdom, the four co-belligerent British Dominions (Canada, Australia, New Zealand and South Africa),

3850-555: The Axis occupation to small nations far removed from the war. The Declaration officially recognized the Big Three and China as the "Four Powers", acknowledging their central role in prosecuting the war; they were also referred to as the " trusteeship of the powerful", and later as the " Four Policemen " of the United Nations. Many more countries joined through to the final days of the war, including colonies and former Axis nations. After

3960-496: The Axis powers shortly thereafter. By the end of 1941, the main lines of World War II had formed. Churchill referred to the "Grand Alliance" of the United Kingdom, the United States, and the Soviet Union, which together played the largest role in prosecuting the war. The alliance was largely one of convenience for each member: the U.K. realized that the Axis powers threatened not only its colonies in North Africa and Asia but also

4070-662: The British Government during the Second World War and made part of the British Army structure. It was mostly Greek Cypriot volunteers and Turkish Cypriot inhabitants of Cyprus but also included other Commonwealth nationalities. On a brief visit to Cyprus in 1943, Winston Churchill praised the "soldiers of the Cyprus Regiment who have served honourably on many fields from Libya to Dunkirk". About 30,000 Cypriots served in

4180-637: The Cyprus Regiment. The regiment was involved in action from the very start and served at Dunkirk , in the Greek Campaign (about 600 soldiers were captured in Kalamata in 1941), North Africa ( Operation Compass ), France, the Middle East and Italy. Many soldiers were taken prisoner especially at the beginning of the war and were interned in various PoW camps ( Stalag ) including Lamsdorf ( Stalag VIII-B ), Stalag IVC at Wistritz bei Teplitz and Stalag 4b near Most in

4290-529: The Czech Republic. The soldiers captured in Kalamata were transported by train to prisoner of war camps. After Germany invaded Poland, France declared war on Germany on 3 September 1939. In January 1940, French Prime Minister Édouard Daladier made a major speech denouncing the actions of Germany: At the end of five months of war, one thing has become more and more clear. It is that Germany seeks to establish

4400-460: The Declaration was signed by Iraq, Iran, Brazil, Bolivia and Colombia. A Tripartite Treaty of Alliance with Britain and the USSR formalised Iran's assistance to the Allies. In Rio de Janeiro , Brazilian dictator Getúlio Vargas was considered near to fascist ideas, but realistically joined the United Nations after their evident successes. In 1944, Liberia and France signed. The French situation

4510-560: The Dutch East Indies in 1942, who planned to use it as a base for their expansion towards the Australian mandated territories of Papua and New Guinea . Japanese plans to occupy Port Moresby were negated by losses during the Battle of the Coral Sea and Battle of Milne Bay . Consequently, Japanese efforts to develop the area were delayed throughout 1943 and 1944. Hollandia was situated on

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4620-561: The French likewise had a long-standing alliance with Poland since 1921 . The Soviet Union , which had been diplomatically and economically isolated by much of the world, had sought an alliance with the western powers, but Hitler preempted a potential war with Stalin by signing the Nazi–Soviet non-aggression pact in August 1939. In addition to preventing a two-front war that had battered its forces in

4730-416: The Japanese positions at the lake, completing their flanking maneuver on 25 April. By 26 April, U.S. troops secured the two eastern airfields, and later that day linked up with forces advancing from the 24th Division advancing from Tanahmerah Bay. The fires around White 1 continued until 27 April when the engineers were released to return to the beach. The stores situation in the forward area grew more urgent as

4840-545: The Japanese, as the air units were being held in reserve for a planned major attack on American naval forces in the Central Pacific. The 41st Division was to stage from Cape Cretin, while the 24th would depart from Goodenough Island . After rehearsals and loading, on 16 to 18 April the amphibious forces sailed from their bases at Finschafen and Goodenough Island ; they joined up with other ships carrying troops bound for Aitape from Seeadler Harbour and then rendezvoused with

4950-474: The League of Nations mandates of French Cameroun and French Togoland , French Madagascar , French Somaliland , and the protectorates of French Tunisia and French Morocco . French Algeria was then not a colony or dependency but a fully-fledged part of metropolitan France . Fleet carrier A fleet carrier is an aircraft carrier designed to operate with the main fleet of a nation's navy . The term

5060-747: The Soviet Union in July, with both nations committing to assisting one another by any means, and to never negotiate a separate peace. The following August saw the Atlantic Conference between American President Franklin Roosevelt and British Prime Minister Winston Churchill , which defined a common Anglo-American vision of the postwar world, as formalized by the Atlantic Charter . At the Second Inter-Allied Meeting in London in September 1941,

5170-448: The Soviet Union, were accepted as members of the United Nations as a way to provide greater influence to Stalin, who had only Yugoslavia as a communist partner in the alliance. British Prime Minister, Neville Chamberlain delivered his Ultimatum Speech on 3 September 1939 which declared war on Germany , a few hours before France. As the Statute of Westminster 1931 was not yet ratified by

5280-574: The UK and therefore also entered hostilities with Britain's declaration of war. At the outbreak of World War II, the British Indian Army numbered 205,000 men. Later during World War II, the British Indian Army became the largest all-volunteer force in history, rising to over 2.5 million men in size. Indian soldiers earned 30 Victoria Crosses during the Second World War. It suffered 87,000 military casualties (more than any Crown colony but fewer than

5390-572: The United Kingdom). The UK suffered 382,000 military casualties. Kuwait was a protectorate of the United Kingdom formally established in 1899. The Trucial States were British protectorates in the Persian Gulf. Palestine was a mandate dependency created in the peace agreements after World War I from the former territory of the Ottoman Empire , Iraq . The Cyprus Regiment was formed by

5500-510: The United States, which had attempted to peacefully negotiate for peace in Asia, was especially angered by the invasion and sought to support China. In March 1939, Germany took over Czechoslovakia , just six months after signing the Munich Agreement , which sought to appease Hitler by ceding the mainly ethnic German Czechoslovak borderlands; while most of Europe had celebrated the agreement as

5610-539: The advantages of a two-front war . Franklin D. Roosevelt , Winston Churchill , and Joseph Stalin were The Big Three leaders. They were in frequent contact through ambassadors, top generals, foreign ministers and special emissaries such as the American Harry Hopkins . It is also often called the "Strange Alliance", because it united the leaders of the world's greatest capitalist state (the United States),

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5720-410: The air and more on the ground. At Tanahmerah Bay, after a naval bombardment from the three Australian cruisers commencing around 06:00, the two RCTs from the 24th Division disembarked from the four U.S. and Australian transports – Henry T. Allen , Carter Hall , Kanimbla and Manoora – and moved ashore aboard 16 LCIs . Seven LSTs were also assigned. The plan called for the establishment of

5830-459: The area until 6 June. Operation Reckless was an unqualified success, as were the landings around Aitape under the guise of Operation Persecution. The loss of Hollandia made the Japanese strategic defense line at Wakde , to the west, and all Japanese positions to the east untenable. Japanese forces to the west were reconfigured to form a defense line through Biak and Manokwari, while the Japanese 18th Army, still in defensive positions around Wewak, to

5940-426: The bay ahead of the main landing force. Three transports were assigned to the operation, Westralia , Gunston Hall and Ganymede . Eight waves landed at White 1 after two LCIs fired rockets at the high ground overlooking the beach where several Japanese antiaircraft guns were located. Over the course of an hour, this feature, dubbed Pancake Hill, was captured with only minimal opposition. The large majority of

6050-445: The beach area late on 23 April, resulting in more fires and killing 24 and wounding 100 more. This attack also destroyed 60 percent of all rations and ammunition that had been landed, and resulted in shortages amongst the infantry advancing towards the airfields. On 24 April, the beach became more congested with the arrival of scheduled reinforcements and further equipment, as well as two transports and seven LSTs carrying troops, including

6160-641: The command of General Masazumi Inada , Major General Toyozo Kitazono and Rear Admiral Yoshikazu Endo ( Ninth Fleet ). Only about 500 of the 11,000 personnel were ground combat troops, being drawn from several antiaircraft batteries. These troops were positioned along the Depapre – Lake Sentani trail. A large number of Japanese aircraft were stationed at airfields near Hollandia in March 1944. Allied planners estimated Japanese forces around Hollandia at around 14,000 troops in total. It proved difficult to accurately estimate

6270-449: The corps commander and his headquarters, which had been diverted from Tanahmerah Bay. To ease the congestion on White 1, 11 LSTs were landed off White 2, while engineers from the 2nd Engineer Special Brigade worked to clear the beach, shifting stores and equipment into Jautefa Bay. Meanwhile, the infantry continued their advance inland. By the end of the day on 23 April the 186th Infantry were about halfway to Lake Sentani, while those from

6380-682: The cruisers HMAS Australia and Shropshire plus several destroyers, while Task Force 75 was made up of three U.S. cruisers, Phoenix , Nashville and Boise under Rear Admiral Russell Berkey . These were supported by a force of eight escort carriers of the 5th Fleet . Secondary landings would take place Aitape , 125 miles to the east, at the same time as those around Hollandia. The decision to undertake these operations simultaneously stretched Allied shipping and logistics resources, and necessitated reallocating resources from other theaters and roles. The shortage of shipping meant that each ship had to be loaded as efficiently as possible, using

6490-554: The declaration; the Big Four were listed first: The United Nations began growing immediately after its formation. In 1942, Mexico, the Philippines and Ethiopia adhered to the declaration. Ethiopia had been restored to independence by British forces after the Italian defeat in 1941. The Philippines, still owned by Washington but granted international diplomatic recognition, was allowed to join on 10 June despite its occupation by Japan. In 1943,

6600-427: The defending Japanese troops there had uncharacteristically abandoned their positions and fled inland. One company landed on White 2 and secured Cape Tjeweri, after which a group of 18 LVTs crossed the sandspit to land two more companies near Pim inside Jautefa Bay. Seven LSTs and the Australian transport Westralia were unloaded over the shore at White 1, landing 4,200 tonnes of combat supplies and over 300 vehicles on

6710-539: The dominant political movement in Germany. By 1933, they gained power and rapidly established a totalitarian regime known as Nazi Germany . The Nazi regime demanded the immediate cancellation of the Treaty of Versailles and made claims over German-populated Austria and the German-populated territories of Czechoslovakia. The likelihood of war was high, but none of the major powers had the appetite for another conflict; many governments sought to ease tensions through nonmilitary strategies such as appeasement . Japan, which

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6820-403: The east side of a headland separating Humboldt Bay to the east and Tanahmerah Bay , 25 miles (40 km) to the west. The town itself was on the shore of Humboldt Bay, with a first-class anchorage. The headland was formed by the Cyclops Mountains , a mountain ridge rising steeply to 7,000 feet (2,100 m) and was backed by Lake Sentani , extending 15 miles (24 km) east to west. Between

6930-562: The east, were faced with a long retreat west through the jungle having been ordered to bypass Hollandia and Aitape and reinforce the 2nd Army in western New Guinea. This plan was eventually reversed in favor of a counterattack on U.S. forces around Aitape. Meanwhile, the Allies quickly made the Sentani airfields operational and were able to mount bombing raids on Japanese positions as far west as Biak, making them useless for air operations. The landings at Hollandia and Aitape were followed just four weeks later by landings at Wakde, Sarmi and Toem, to

7040-487: The eight governments in exile ( Belgium , Czechoslovakia , Greece , Luxembourg , the Netherlands , Norway , Poland , Yugoslavia ) and Free France . The meeting culminated with the Declaration of St James's Palace , which set out a first vision for the postwar world. In June 1941, Hitler broke the non-aggression agreement with Stalin and Axis forces invaded the Soviet Union , which consequently declared war on Germany and its allies. Britain agreed to an alliance with

7150-438: The eight European governments in exile, together with the Soviet Union and representatives of the Free French Forces, unanimously adopted adherence to the common principles of policy set forth in the Atlantic Charter. In December, Japan attacked American and British territories in Asia and the Pacific, resulting in the U.S. formally entering the war as an Allied power. Still reeling from Japanese aggression, China declared war on all

7260-418: The end of 1941 were the " Big Four " – the United Kingdom , United States , Soviet Union , and China . Membership in the Allies varied during the course of the war. When the conflict broke out on 1 September 1939, the Allied coalition consisted of the United Kingdom, France , and Poland , as well as their respective dependencies , such as British India . They were joined by the independent dominions of

7370-445: The escort aircraft carriers providing air cover off Manus Island early on 20 April. After taking evasive routes to the west of the Admiralty Islands to avoid air attack, the convoy turned back towards their objective late in the afternoon. The convoy split around 80 miles (130 km) offshore, with the Eastern Attack Group, consisting of troops assigned to Operation Persecution turning away for Aitape. They arrived off Hollandia during

7480-464: The fight against the Germans, whereas the United States had the luxury of flexing industrial power, but with the "minimum possible expenditure of American lives". Roosevelt and Churchill opened ground fronts in North Africa in 1942 and in Italy in 1943, and launched a massive air attack on Germany, but Stalin kept wanting more. Although the U.S. had a strained relationship with the USSR in the 1920s, relations were normalized in 1933. The original terms of

7590-405: The first day. The beach quickly became congested, as it had also been the center of a Japanese supply dump prior to the assault, and engineers had to work to clear the area with bulldozers and construct a roadway to the beach's only exit. A fire caused by Allied bombing continued to burn in the Japanese supply dump for several days and later attracted the attention of a Japanese bomber, which attacked

7700-463: The fleet, would operate in unison with the fleet, to ward off air attacks and to strike opposing forces from the air. Cruisers and destroyers would protect fleet carriers. The fleet carriers would then displace battleships as the preeminent assets of the surface fleet. A fleet carrier would carry more than 50 aircraft, and be fast enough to keep up with other major elements of the fleet, such as cruisers and battleships. As combat experience demonstrated

7810-498: The greatest socialist state (the Soviet Union) and the greatest colonial power (the United Kingdom). Relations between them resulted in the major decisions that shaped the war effort and planned for the postwar world. Cooperation between the United Kingdom and the United States was especially close and included forming a Combined Chiefs of Staff . There were numerous high-level conferences ; in total Churchill attended 14 meetings, Roosevelt 12, and Stalin 5. Most visible were

7920-551: The importance of aircraft carriers, numerous ships were rapidly converted to operate aircraft during World War II; and it became important to differentiate ships with the speed and size allowed by the Washington Naval Treaty from ships that were slower and/or carried fewer aircraft. Ships of similar speed carrying fewer aircraft were identified as light aircraft carriers (CVL) and ships of lower speed became known as escort aircraft carriers (CVE). Fleet aircraft carrier became

8030-596: The landings at Hollandia were moved back to 22 April at around this time due to logistical problems and the Pacific Fleet's other commitments, and it was decided to conduct the landing at Aitape simultaneously with the main assault. The Japanese high command intended to hold Hollandia. The area was selected by the Second Area Army as a key base for the defense of western New Guinea in September 1943, though by November it had been decided that it would form an outpost to

8140-510: The landings. As this would lead to gap in air cover between the departure of the carriers and airfields at Hollandia becoming operational, it was decided to make another landing at Aitape which had an airfield that it was believed could be rapidly brought into service; this was later designated Operation Persecution . Nimitz offered to assign eight small escort carriers to support the landing at Aitape, with these vessels then proceeding to support operations at Hollandia until 11 May. The timing of

8250-521: The last world war, the agreement secretly divided the independent states of Central and Eastern Europe between the two powers and assured adequate oil supplies for the German war machine. On 1 September 1939, Germany invaded Poland ; two days later Britain and France declared war on Germany. Roughly two weeks after Germany's attack, the Soviet Union invaded Poland from the east. Britain and France established

8360-572: The main defensive positions which were located further to the west. Few combat units were stationed at Hollandia in early 1944. In March General Hatazo Adachi , the commander of the Japanese 18th Army , was ordered by the Second Area Army to withdraw his forces west from the Madang- Hansa Bay area to Hollandia, with one division to be dispatched there immediately. Adachi ignored this order, and instead decided to concentrate his troops at Hansa Bay and Wewak. Adachi's decision may have been motivated by

8470-512: The main landing, as it provided the only spot where the larger LSTs could land, while White 2 would be secured with smaller LVTs and DUKWs , which would be used to cross the shallow entrance to Jautefa Bay. The three supporting U.S. cruisers and destroyers began their bombardment around 06:00, concentrating on targets around the entrance to Jautefa Bay and Hollandia. This bombardment was augmented with air strikes from carrier-borne aircraft, while two destroyer-minesweepers, Long and Hogan , swept

8580-564: The mountain ridge and the lake was a narrow plain where the Japanese had built a number of airfields; three had been constructed by April 1944 and a fourth was under construction. Of these, only one was considered to be complete. In early 1944, after the Huon Peninsula had been secured , the Allied South West Pacific Command determined that the area should be seized and developed into a staging post for their advance along

8690-571: The night of 21/22 April and about 20 miles (32 km) offshore, the convoy split again with the Central Attack Group preceding for Humboldt Bay while the Western Attack Group turned towards Tanahmerah Bay. The landings took place at dawn on 22 April after a supporting naval bombardment at each site. Meanwhile, carrier-borne aircraft attacked targets around Wakde, Sarmi and Hollandia from 21 April, destroying at least 33 Japanese planes in

8800-624: The north coast of New Guinea into the Dutch East Indies and to the Philippines . Allied intelligence successes led to the decision to land at Hollandia. Intelligence gained from breaking the codes protecting Imperial Japanese Army radio messages led the Allies to learn that the Hollandia area was only lightly defended, with Japanese forces being concentrated in the Madang - Wewak region. In response, on 8 March General Douglas MacArthur sought approval from

8910-559: The opposing Central Powers in the Paris Peace Conference of 1919–1920 . Germany resented signing the Treaty of Versailles , which required that it take full responsibility for the war, lose a significant portion of territory, and pay costly reparations, among other penalties. The Weimar Republic , which formed at the end of the war and subsequently negotiated the treaty, saw its legitimacy shaken, particularly as it struggled to govern

9020-482: The parliaments of Australia and New Zealand, the British declaration of war on Germany also applied to those dominions . The other dominions and members of the British Commonwealth declared war from 3 September 1939, all within one week of each other; they were Canada , British India and South Africa . During the war, Churchill attended seventeen Allied conferences at which key decisions and agreements were made. He

9130-450: The planned invasion. This bombing operation was also the moment in the New Guinea campaign when Japanese air power no longer threatened the Allies. During the same period, American air and naval forces sank many of the Japanese ships which were attempting to transport reinforcements to the Hollandia and Wewak areas; these attacks were guided by intelligence gained from breaking the Japanese codes. The air and naval attacks succeeded in isolating

9240-399: The possibilities of operating naval aircraft without the performance limitations of flotation devices required for seaplanes and flying boats . The most successful of these early aircraft carriers were built from battlecruisers . Battlecruisers typically had a speed of about 30 knots (56 km/h), which was several knots faster than the speed of contemporary battleships . Additional speed

9350-493: The range of the available Allied fighter aircraft. The 18th Army did not plan for the defense of Hollandia, and the Army Air Force and Naval units stationed there had little opportunity to develop plans due to the rapid turnover of their leadership. The port and airfields were the base for units of the Japanese 2nd Army (General Fusatarō Teshima ) and the 6th Air Division of the 4th Air Army . These totaled 11,000 men under

9460-530: The remaining Japanese forces in New Guinea. The Allies conducted a deception operation to ensure that the Japanese continued to believe that they would land at Hansa Bay rather than Hollandia. This involved air attacks and naval bombardments on the Wewak area, and faked landings of reconnaissance patrols. This deception effort proved successful. In response to a request from the head of the US Navy, Admiral Ernest King ,

9570-555: The scouting role. By the time of the Korean War , the typical United States Navy fleet carrier embarked two squadrons of jet fighters, two squadrons of piston fighter-bombers, and a squadron of attack planes. Smaller numbers of specialized aircraft were also carried, including night fighters , night-attack bombers, and planes uniquely modified for aerial reconnaissance , airborne early warning and control (AEW), electronic countermeasures (ECM), and carrier onboard delivery (COD). When

9680-413: The size and composition of the Japanese defenses, as attempts to infiltrate reconnaissance parties in the area failed. As a result, code breaking was the main source of intelligence. During the early stages of the planning process MacArthur's headquarters believed that two Japanese infantry regiments may have been in the Hollandia area, but this was later discounted. It was later thought that 3000 troops from

9790-473: The speed of later purpose-designed aircraft carriers was set by the speed of the converted battle cruisers. The Washington Naval Treaty of 1922 limited the displacement of purpose-designed aircraft carriers to 23,000 tons. The idea of a modern fleet carrier was developed in 1931 by Admirals J.J. Clark and Harry E. Yarnell of the United States Navy . Fleet carriers, instead of operating as scouts for

9900-413: The supply line up the single road broke down. Aerial resupply brought some relief, and on 30 April a group of 12 LCTs, towed by several LSTs, arrived at Humboldt Bay. The situation was not fully resolved until 3 May when transport aircraft began landing on an airstrip that was hastily built by an engineer aviation battalion at Tami. According to historian Stanley Kirby , the collapse of Japanese resistance

10010-856: The term to distinguish front-line aircraft carriers from the generic description of any warship carrying aircraft. In the post-war era, the United States Navy sought to give aircraft carriers a strategic bombing capability in addition to their tactical role. The largest bombs carried by carrier aircraft during the Second World War had been about 2,000 pounds (910 kg) but experience had indicated some hardened targets like submarine pens were impervious to bombs of less than 12,000 pounds (5,400 kg). The fleet carriers of World War II were incapable of operating meaningful numbers of aircraft large enough to carry such heavy bombs over anticipated distances with performance characteristics to avoid defending aircraft. The term fleet carrier then evolved to differentiate

10120-484: The three summit conferences that brought together the three top leaders. The Allied policy toward Germany and Japan evolved and developed at these three conferences. There were many tensions among the Big Three leaders, although they were not enough to break the alliance during wartime. In 1942 Roosevelt proposed becoming, with China, the Four Policemen of world peace. Although the 'Four Powers' were reflected in

10230-414: The total force, 22,500 combat troops were assigned to the landing at Aitape; while the rest (nearly 30,000) were allocated to the Hollandia landings. The main landings at Hollandia would be made at two locations. The U.S. 24th Division's 19th and 21st Regimental Combat Teams (RCTs) were to land at Tanahmerah Bay. The other landing would be made at Humboldt Bay by two RCTs (the 162nd and 186th ) of

10340-474: The two units had reached the western airfield and on 26 April it was secured. Meanwhile, at Humboldt Bay Rear Admiral William M. Fechteler 's Central Attack Group carrying the U.S. 41st Division also achieved complete surprise, coming ashore at two beaches: White 1, about 2.5 miles (4.0 km) south of Hollandia, and White 2 on a narrow sandspit near Cape Tjeweri at the entrance to Jautefa Bay, and about 4 miles (6.4 km) from Lake Sentani. White 1 would be

10450-499: The war ended, the Allies, and the Declaration that bound them, would become the basis of the modern United Nations ; one enduring legacy of the alliance is the permanent membership of the U.N. Security Council , which is made up exclusively of the principal Allied powers that won the war. The victorious Allies of World War I —which included what would become the Allied powers of the Second World War—had imposed harsh terms on

10560-606: The war, Britain could remain the sole great power in Europe facing the Communist threat, as it was in 1940 and 1941 against Nazism. During the early part of 1945, Peru, Chile, Paraguay, Venezuela, Uruguay, Turkey, Egypt, Saudi Arabia, Lebanon, Syria (these latter two French colonies had been declared independent states by British occupation troops, despite protests by Pétain and later De Gaulle) and Ecuador became signatories. Ukraine and Belarus , which were not independent states but parts of

10670-469: The war, and ultimately the postwar international order. Relations between the United Kingdom and the United States were especially close , with their bilateral Atlantic Charter forming the groundwork of their alliance. The Allies became a formalized group upon the Declaration by United Nations on 1 January 1942, which was signed by 26 nations around the world; these ranged from governments in exile from

10780-552: The west. In mid-July, the Japanese launched their counterattack with around 20,000 troops, resulting in heavy fighting further inland during the Battle of Driniumor River . Both Humboldt and Tanahmerah were developed with naval base, ammunition, repair and fuel facilities. The facilities in the area were designated Base G. Several higher headquarters were moved to the area, including those of the Sixth Army, Eighth Army , Fifth Air Force, and Seventh Fleet. Base G played an important role as

10890-558: The wording of the Declaration by United Nations , Roosevelt's proposal was not initially supported by Churchill or Stalin. Division emerged over the length of time taken by the Western Allies to establish a second front in Europe. Stalin and the Soviets used the potential employment of the second front as an 'acid test' for their relations with the Anglo-American powers. The Soviets were forced to use as much manpower as possible in

11000-628: Was "MacArthur's finest hour in World War II and ULTRA's single greatest contribution to the general's Pacific strategy". Stephen R. Taaffe reached a similar conclusion. Japanese casualties amounted to 3,300 killed and 600 wounded in combat; a further 1,146 were killed or died in the area up to 27 September 1944. A total of 7,200 Japanese troops assembled at Genjem and then attempted to withdraw overland to Sarmi; only around 1,000 reached their destination. Allied casualties amounted to 157 killed and 1,057 wounded. U.S. forces undertook mopping up operations in

11110-543: Was "the most important of the Allied leaders during the first half of World War II". British West Africa and the British colonies in East and Southern Africa participated, mainly in the North African, East African and Middle-Eastern theatres. Two West African and one East African division served in the Burma Campaign . Southern Rhodesia was a self-governing colony, having received responsible government in 1923. It

11220-544: Was a principal allied power in the First World War, had since become increasingly militaristic and imperialistic; parallel to Germany, nationalist sentiment increased throughout the 1920s, culminating in the invasion of Manchuria in 1931. The League of Nations strongly condemned the attack as an act of aggression against China; Japan responded by leaving the League in 1933. The second Sino-Japanese War erupted in 1937 with Japan's full-scale invasion of China. The League of Nations condemned Japan's actions and initiated sanctions;

11330-470: Was designated Operation Reckless in recognition of the risks involved in carrying it out. MacArthur met with the commander of the Pacific Fleet, Admiral Chester W. Nimitz , at Brisbane between 25 and 27 March to discuss the role of the Navy in the operation. While MacArthur sought eight days worth of support from the fleet's powerful fleet carriers , Nimitz would only agree to commit this force for two days after

11440-399: Was developed during World War II , to distinguish it from the escort carrier and other less capable types. In addition to many medium-sized carriers and supercarriers , some light carriers are also classed as fleet carriers. Aircraft carriers were designed in the years between World War I and World War II . Flight decks were installed on several different types of ships to explore

11550-412: Was due to a lack of preparedness, changes in the command structure and a lack of combat troops; many of the 11,000 men based there were administrative and support units. None of the senior officers present had been in post more than a few weeks and the senior air officer had been relieved following the destruction of his air forces at the beginning of April. Neither Kitazono nor Endo had been able to prepare

11660-413: Was landed in the area by submarine in late March, and the reality of the terrain was only discovered through aerial intelligence that arrived too late. On landing, the U.S. troops came under sporadic small arms and machine gun fire, but this was quickly suppressed. The terrain, however, proved more problematic. Red 2 beach was found to be highly unsuitable and the promised roads were non-existent. Backed by

11770-457: Was not a sovereign dominion. It governed itself internally and controlled its own armed forces, but had no diplomatic autonomy, and, therefore, was officially at war as soon as Britain was at war. The Southern Rhodesian colonial government issued a symbolic declaration of war nevertheless on 3 September 1939, which made no difference diplomatically but preceded the declarations of war made by all other British dominions and colonies. These included:

11880-523: Was not necessary for maintaining station with the battle fleet, but enabled the carrier to catch up with the battle fleet after temporarily leaving formation to turn into the wind for launch or recovery of aircraft . The speed of the carrier during launch effectively decreased the takeoff distance for embarked aircraft, so faster carriers could operate heavier aircraft with greater range and superior combat capability. As such naval aircraft became operational, no nation could risk fielding less capable aircraft; so

11990-416: Was too anxious to prove a point ... he suffered from an inferiority complex." During December 1941, Roosevelt devised the name "United Nations" for the Allies and Churchill agreed. He referred to the Big Three and China as the " Four Policemen " repeatedly from 1942. The alliance was formalised in the Declaration by United Nations signed on 1 January 1942. There were the 26 original signatories of

12100-462: Was very confused. Free French forces were recognized only by Britain, while the United States considered Vichy France to be the legal government of the country until Operation Overlord , while also preparing U.S. occupation francs . Winston Churchill urged Roosevelt to restore France to its status of a major power after the liberation of Paris in August 1944; the Prime Minister feared that after

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