Burma campaign 1942–1943 | |||||||
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Part of the Burma campaign, the South-East Asian theatre of World War II, the Second Sino-Japanese War and the Pacific Theater of World War II | |||||||
Japanese troops at the Shwethalyaung Buddha in Pegu | |||||||
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Belligerents | |||||||
United States Republic of China | Thailand | ||||||
Commanders and leaders | |||||||
Casualties and losses | |||||||
~6,500 casualties [note 1] | 1,800+ casualties [note 2] |
The Burma campaign in the South-East Asian Theatre of World War II took place over four years from 1942 to 1945. During the first year of the campaign, the Imperial Japanese Army with aid from Burmese insurgents had driven British forces and Chinese forces out of Burma, and occupied most of the country. From May to December 1942, most active campaigning ceased as the monsoon rains made tactical movement almost impossible in the forested and mountainous border between India and Burma, and both the Allies and Japanese faced severe logistical constraints.
When the rains ceased, the Allies launched two offensives. One, an attack in the coastal Arakan Province, failed, with severe effects on Allied morale. This was restored partly by improvements to administration and training, and partly by the much-publicised results of a raid by troops under Brigadier Orde Wingate. This raid may also have goaded Japanese commanders into launching major offensives the following year, which failed disastrously.
A total of about 450,000 Allied troops faced 300,000 Japanese. [4] However, both Allied and Japanese operations were constrained by terrain and logistics. The frontier region between Burma and India was for the most part almost impassable country, with very few practicable routes through the jungle-clad hills. The Japanese could make use of rail and river transport only as far as the port of Kalewa on the Chindwin River, while the Allies depended on inadequate rail and river links to Dimapur in the Brahmaputra River valley, from where a single road led to the base at Imphal.
The Far Eastern theatre was accorded the lowest priority by the Chiefs of Staff Committee in Britain. British military efforts were instead concentrated on the Middle Eastern theatre, partly in accordance with the declared "Germany First" policy of the United States government under President Franklin Roosevelt. Few resources were allocated to India, and indeed newly raised formations of the British Indian Army were being trained in desert warfare rather than for jungle warfare until December 1942, when it was clear that the North African Campaign was finished to all intents and purposes. [5]
Allied efforts in India were also hampered by the disordered state of Eastern India at the time. In the aftermath of the Allied military disasters in the early months of 1942, there were violent Quit India movement protests in Bengal and Bihar, [6] which required large numbers of British troops to suppress. There was also a disastrous famine in Bengal which may ultimately have led to 3 million deaths through starvation, disease and exposure. Although the immediate causes were a typhoon which devastated large areas in October 1942 and a premature scorched earth operation in Eastern Bengal to deny resources to the Japanese in case of invasion, the reserves of food available for relief were reduced by the loss of rice normally imported from Burma and Allied demands for exported rice in other theatres, while the dislocation caused by sporadic Japanese bombing, and corruption and inefficiency in the government of Bengal prevented any proper distribution of aid, or other drastic measures being taken for several months. [7]
The Japanese were consolidating their position in Burma. Lieutenant General Shojiro Iida, commander of the Japanese Fifteenth Army, was asked by higher headquarters for his opinion as to whether to resume the offensive after the rains stopped. He in turn consulted the commanders of his forward divisions, who felt that the terrain was too difficult and the logistical problems could not be overcome. Lieutenant General Renya Mutaguchi, commanding the Japanese 18th Division, was particularly scathing. Plans for an attack were accordingly dropped. [8]
Within Burma, the Japanese disbanded the Burma Independence Army, which had grown rapidly during the Japanese invasion of Burma, but was only loosely organised and in some cases was opposed to Japanese control. The Japanese replaced it with the Burma Defence Army, trained by Japanese officers. They also prepared to form a Burmese government (the State of Burma), which was eventually established in May 1943, under Ba Maw. This government had little real power, and the Japanese remained in control of most aspects of Burma's administration. The Burmese economy, already damaged by the earlier fighting, declined further through damage to the transport infrastructure (resulting from the fighting of the previous year and British demolitions) and lack of commercial markets for exported rice and other products.
Lieutenant General Iida made efforts to promote Burma's interests, but he was repeatedly overruled by directives from Tokyo, and was relieved in 1943, partly because he objected to Tokyo's economic policies in Burma. [9]
In spite of their difficulties, the Allies mounted two operations during the 1942–1943 dry season. The first was a small scale offensive into the coastal Arakan region of Burma. The Indian Eastern Army under Lieutenant General Noel Irwin intended to reoccupy the Mayu peninsula and Akyab Island, which held an important airfield. Beginning on 21 December 1942, the 14th Indian Division advanced to Rathedaung and Donbaik, only a few miles from the end of the peninsula. Here they were halted by a small Japanese force (initially of only two battalions but with heavy artillery support) [10] which occupied nearly impregnable bunkers. Indian and British troops made repeated frontal assaults without armoured support, and were thrown back with heavy casualties. [11]
Japanese reinforcements, amounting to an understrength division, arrived from Central Burma. Crossing rivers and mountain ranges which the Allies had assumed to be impassable, they hit 14th Division's exposed left flank on 3 April 1943 and overran several units. [12] The division's headquarters was replaced by that of 26th Indian Division, which attempted to hold a defensive line south of the town of Buthidaung, and even to surround the Japanese as they pressed their advantage. The exhausted units which the division had inherited were unable to hold this line and were forced to abandon much equipment and fall back almost to the Indian frontier. [13]
Irwin was dismissed, partly as a result of this disaster. He made several disparaging remarks regarding the state of equipment, training and morale of Eastern Army. Although not wholly inaccurate, they were widely resented. [14] Irwin's successor, General George Giffard, concentrated on restoring the army's administration and morale.
The second action was much more controversial. Under the command of Brigadier Orde Wingate, the 77th Indian Infantry Brigade, better known as the Chindits, infiltrated through the Japanese front lines and marched deep into Burma with the initial aim of cutting the main north–south railway in Burma. The operation (codenamed Operation "Longcloth") had originally been conceived as part of a much larger coordinated offensive, which had to be aborted due to lack of supplies and shipping. Rather than let the Chindits' training be wasted, Wingate nevertheless carried out the operation, even though its original purpose was invalid. [15]
Some 3,000 men entered Burma in seven columns. They caused some damage to the communications of the Japanese in northern Burma, cutting the railway for possibly two weeks. However, they suffered heavy casualties: 818 killed, wounded or missing, 27% of the original force. [16] Those who did return were wracked with disease and quite often in dreadful physical condition. Though the operational results were questioned, both at the time and subsequently, the raid was used to great propaganda effect to prove to British and Indian soldiers that they could live, move and fight as effectively as the Japanese in the jungle, countering the impression created after the battles of early 1942 that the Japanese could not be beaten in such terrain. [15] [17]
It was also said by the Japanese commanders after the war that the Japanese in Burma decided later to take the offensive in 1944, rather than adopt a purely defensive stance, as a direct result of the Chindit operation.[ citation needed ]
There was continual patrol activity and low-key fighting on the frontier south of Imphal, but neither army possessed the resources to mount decisive operations. 17th (Light) Indian Division held positions around the town of Tiddim at the end of a precarious supply line 100 miles (160 km) south of Imphal, and skirmished with units of the Japanese 33rd Division. The Japanese had a shorter and easier supply line from the port of Kalewa on the Chindwin River and had the upper hand for most of 1942 and 1943. [18]
V Force, an irregular force raised by GHQ India in the frontier areas of Burma and India, also patrolled and scouted in the large areas controlled by neither army, but could have no decisive effect on Japanese operations.
At American insistence, one of the overriding Allied strategic aims was the maintenance of supplies to the Nationalist Chinese government under Chiang Kai-shek. When the Japanese had occupied Burma, the supply route via Rangoon had been cut. The Americans organised an airlift of supplies over the Himalaya mountain range. The route, and the airlift itself, acquired the nickname of The Hump. There were heavy losses from the natural hazards of the route, and at this stage of the war, the Allied transport aircraft were vulnerable to Japanese fighter aircraft operating from Myitkyina airfield in northern Burma. [19]
At the insistence of the American Joseph Stilwell, who was chief of staff to Chiang Kai-shek among other appointments, the Allies also began construct the Ledo Road to link India with China, which was to prove an enormous engineering task. As part of the preparations to drive this road through Japanese-occupied northern and eastern Burma, two divisions of Chinese troops who had retreated into India in 1942 were re-equipped and trained by the Americans at camps in Ramgarh in Bihar. Following Wingate's raid and the expansion of his force for the campaigning season of 1943–1944, the Americans also formed the long-range penetration unit which later became known as Merrill's Marauders and deployed them to Ledo.
The Americans also supplied logistical units (especially construction units and railway operating personnel) which improved and maintained the Allied railway lines and river transport in North Eastern India, in preparation for Allied offensives in 1944. [20]
In mid-1942, a small reconnaissance party was parachuted into the Myitkyina area, to investigate Myitkyina and the outpost at Fort Hertz in the far north of Burma, which had been cut off from India. Fort Hertz was found to be still in Allied hands. Liaison and engineering parties were flown or parachuted into Fort Hertz, and a locally raised irregular force, the Kachin Levies, was established. The airstrip was improved to become an emergency landing strip for aircraft flying the "Hump" route. [21]
Although the Kachin Levies were directly controlled at first by Eastern Army (and later by Fourteenth Army), they were later transferred to the American Northern Combat Area Command, to cooperate more closely with the impending American and Chinese advance from Ledo.
Like the Allies, the Japanese sought to improve their lines of communication within South East Asia. To this end, they constructed the Burma Railway which linked Moulmein in Southern Burma with Bangkok in Siam. Construction began on 22 June 1942 and was completed on 17 October 1943. The project became notorious for the deaths among the labour force (90,000 out of 180,000 conscripted Asian labourers and 16,000 out of 60,000 Allied prisoners of war).
The Commander-in-Chief, India, General Archibald Wavell, was responsible for operations in Persia and Iraq (where there had been fears of a breakthrough by German forces in North Africa and the Caucasus until late 1942) and against the Japanese in Burma, and also for internal security in wide areas of India and the administration of the rapidly expanding Indian Army. His headquarters, GHQ India itself was derided as overstaffed and inefficient. The Australian war correspondent Wilfred Burchett described it as "... an antiquarium of Colonel Blimps". [22]
In August 1943, the new Allied South East Asia Command was created, to take over control and planning of operations against the Japanese in Burma and the Indian Ocean. In November, Admiral Louis Mountbatten was appointed as Commander in Chief of the new command. Because the theatre was linked to the American administrative China Burma India Theater or CBI, and because increasing numbers of American air force units and logistical resources were being dispatched to India, General Stilwell was appointed Deputy Supreme Commander.
Wavell meanwhile became Viceroy of India, and immediately addressed the famine in Bengal, although the crisis was eased only when the Government in Britain was persuaded to ship relief supplies of food to Bengal. He was replaced as Commander in Chief of the Indian Army by General Claude Auchinleck, who had been relieved as Commander in Chief of the Middle East Command a year previously. During the Arakan campaign it had been noted that morale among the inadequately trained Indian troops had declined to the point where many desertions had occurred, and even defections to the Indian National Army. (Similar low morale among British troops manifested itself as apathy and very high rates of malaria infection.) Auchinleck reinvigorated the Indian Army's headquarters and its rear-area and training establishments. Other reforms were made to improve the Indian Army's morale; soldiers' pay was increased, non-commissioned officers and Viceroy's commissioned officers were given better training and more responsibility, and efforts were made to counter Indian National Army propaganda. [23]
The Eastern Army was also split, into the Fourteenth Army, part of South East Asia Command and responsible for the conduct of operations in Manipur and the Arakan, and Eastern Command, which reported to GHQ India and was responsible for rear-area security and the lines of communication.
In March 1943, the Japanese created a new army-level headquarters, the Burma Area Army, to control operations in Burma. Lieutenant General Masakazu Kawabe was appointed its Commander. The army took command of the Fifteenth Army in the north and east of the country, and at first directly controlled units in the south and west of the country. The Twenty-Eighth Army was created to assume the latter responsibility on 6 January 1944.
In August, Lieutenant General Iida was replaced as commander of the Fifteenth Army by Lieutenant General Mutaguchi, former commander of the 18th Division. From the moment he took charge, Mutaguchi forcefully advocated a bold offensive into India for the following year, in contrast to his earlier dismissal of the chances of such an attack succeeding. The offensive plan, codenamed U-Go , was endorsed by Imperial General Headquarters and was launched the following year.
The Chindits, officially known as Long Range Penetration Groups, were special operations units of the British and Indian armies which saw action in 1943–1944 during the Burma Campaign of World War II. Brigadier Orde Wingate formed them for long-range penetration operations against the Imperial Japanese Army, especially attacking lines of communication deep behind Japanese lines.
Field Marshal William Joseph Slim, 1st Viscount Slim,, usually known as Bill Slim, was a British military commander and the 13th Governor-General of Australia.
The 11th Army Group was the main British Army force in Southeast Asia during the Second World War. Although a nominally British formation, it also included large numbers of troops and formations from the British Indian Army and from British African colonies, and also Nationalist Chinese and United States units.
Major General Orde Charles Wingate, was a senior British Army officer known for his creation of the Chindit deep-penetration missions in Japanese-held territory during the Burma Campaign of the Second World War.
The British Fourteenth Army was a multi-national force comprising units from Commonwealth countries during the Second World War. As well as British Army units, many of its units were from the Indian Army and there were also significant contributions from the British Army's West and East African divisions. It was often referred to as the "Forgotten Army" because its operations in the Burma campaign were overlooked by the contemporary press, and remained more obscure than those of the corresponding formations in Europe for long after the war. For most of the Army's existence, it was commanded by Lieutenant-General William Slim.
The Northern Combat Area Command (NCAC) was a subcommand of the Allied South East Asia Command (SEAC) during World War II. It controlled Allied ground operations in northern Burma. For most of its existence, NCAC was commanded by United States Army General Joseph "Vinegar Joe" Stilwell. In 1945 after Stilwell was recalled, his deputy, Lieutenant General Daniel Sultan, was promoted to and assumed command.
The Burma campaign was a series of battles fought in the British colony of Burma. It was part of the South-East Asian theatre of World War II and primarily involved forces of the Allies against the invading forces of the Empire of Japan. Imperial Japan was supported by the Thai Phayap Army, as well as two collaborationist independence movements and armies. Nominally independent puppet states were established in the conquered areas and some territories were annexed by Thailand. In 1942 and 1943, the international Allied force in British India launched several failed offensives to retake lost territories. Fighting intensified in 1944, and British Empire forces peaked at around 1 million land and air forces. These forces were drawn primarily from British India, with British Army forces, 100,000 East and West African colonial troops, and smaller numbers of land and air forces from several other Dominions and Colonies. These additional forces allowed the Allied recapture of Burma in 1945.
The South-East Asian Theatre of World War II consisted of the campaigns of the Pacific War in the Philippines, Thailand, Indonesia, Indochina, Burma, India, Malaya and Singapore between 1941 and 1945.
China Burma India Theater (CBI) 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 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; the term "CBI" was significant in logistical, material and personnel matters; it was and is commonly used within the US for these theaters.
Lieutenant General Walter David Alexander Lentaigne,, also known as Joe Lentaigne, was a senior officer in the British Indian Army.
The Battle of Kohima was the turning point of the Japanese U-Go offensive into India in 1944 during the Second World War. The battle took place in three stages from 4 April to 22 June 1944 around the town of Kohima, now the capital city of Nagaland in Northeast India. From 3 to 16 April, the Japanese attempted to capture Kohima ridge, a feature which dominated the road by which the besieged British and Indian troops of IV Corps at Imphal were supplied. By mid-April, the small British and British Indian force at Kohima was relieved.
The Battle of Imphal took place in the region around the city of Imphal, the capital of the state of Manipur in Northeast India from March until July 1944. Japanese armies attempted to destroy the Allied forces at Imphal and invade India, but were driven back into Burma with heavy losses. Together with the simultaneous Battle of Kohima on the road by which the encircled Allied forces at Imphal were relieved, the battle was the turning point of the Burma campaign, part of the South-East Asian theatre of World War II. The Japanese defeat at Kohima and Imphal was the largest up until that time, with many of the Japanese deaths resulting from starvation, disease and exhaustion suffered during their retreat. According to voting in a contest run by the British National Army Museum, the Battle of Imphal was bestowed as Britain's Greatest Battle in 2013.
The Battle of the Admin Box took place on the southern front of the Burma campaign from 5 to 23 February 1944, in the South-East Asian Theatre of World War II.
The Battles and Operations involving the Indian National Army during World War II were all fought in the South-East Asian theatre. These range from the earliest deployments of the INA's preceding units in espionage during Malayan Campaign in 1942, through the more substantial commitments during the Japanese Ha Go and U Go offensives in the Upper Burma and Manipur region, to the defensive battles during the Allied Burma campaign. The INA's brother unit in Europe, the Indische Legion did not see any substantial deployment although some were engaged in Atlantic wall duties, special operations in Persia and Afghanistan, and later a small deployment in Italy. The INA was not considered a significant military threat. However, it was deemed a significant strategic threat especially to the Indian Army, with Wavell describing it as a target of prime importance.
The U Go offensive, or Operation C, was the Japanese offensive launched in March 1944 against forces of the British Empire in the northeast Indian regions of Manipur and the Naga Hills. Aimed at the Brahmaputra Valley, through the towns of Imphal and Kohima, the offensive along with the overlapping Ha Go offensive was one of the last Japanese offensives during the Second World War. The offensive culminated in the Battles of Imphal and Kohima, where the Japanese and their allies were first held and then pushed back.
The fighting in the Burma campaign in 1944 was among the most severe in the South-East Asian Theatre of World War II. It took place along the borders between Burma and India, and Burma and China, and involved the British Commonwealth, Chinese and United States forces, against the forces of Imperial Japan and the Indian National Army. British Commonwealth land forces were drawn primarily from the United Kingdom, British India and Africa.
The Japanese 15th Army was an army of the Imperial Japanese Army during World War II. It was involved in the invasion of Burma in December 1941 and served in that country for most of its war service.
The Burma campaign in the South-East Asian Theatre of World War II was fought primarily by British Commonwealth, Chinese and United States forces against the forces of Imperial Japan, who were assisted by the Burmese National Army, the Indian National Army, and to some degree by Thailand. The British Commonwealth land forces were drawn primarily from the United Kingdom, British India and Africa.
The Arakan campaign of 1942–1943 was the first tentative Allied attack into Burma, following the Japanese invasion of Burma earlier in 1942, during the Second World War. The British Army and British Indian Army were not ready for offensive actions in the difficult terrain they encountered, nor had the civil government, industry and transport infrastructure of Eastern India been organised to support the Army on the frontier with Burma. Japanese defenders occupying well-prepared positions repeatedly repulsed the British and Indian forces, who were then forced to retreat when the Japanese received reinforcements and counter-attacked.
The XV Corps was a corps-sized formation of the British Indian Army, which was formed in India during the Second World War. It took part in the Burma Campaign and was disbanded after the end of the war. While part of the British Indian Army, it included other commonwealth units, namely the 22nd and 28th East African Brigades.