Battle of Imphal

The battle of Imphal was fought between the forces of the Imperial Japanese Army and the British and British Indian forces at Imphal in 1944. It was an attempt by the Japanese to invade British-India but were beaten back with heavy losses, forever altering their fortunes in the Eastern theatre of World War 2. This is closely linked with the Battle of Kohima in 1944.

Read on more to find out about the Battle of Imphal for the IAS Exam.

Aspirants should learn about other Medieval and Modern Indian History topics which are important for Civil Services Examination. Check the following links to aid your history preparation:

Background of the Battle of Imphal

Imperial Japan had conquered vast swathe of territory that encompassed the entirety of eastern China and all of South-East Asia ever since they attacked the American naval base at Pearl harbour in December 1941. But their string of conquests was brought to a halt when the United States launched a naval campaign of their own. Their problem was further compounded by the Chinese resistance that continued to harass its army in Eastern China.

The Chinese were supplied through flights coming from the Brahmaputra region in North-East India. If the Japanese were to cut off the supply route it would effectively destroy the resistance of the Chinese nationalist army.

Candidates can find NCERT Ancient Indian History Notes in the linked article

The Japanese command had become aware of the Allied plant to launch offensives from India and China, aimed at a thrust into Burma. The town of Imphal in Manipur, they believed, was an ideal staging ground as it was close to the Burmese border. Imphal was linked to an even larger base at Dimapur in the Brahmaputra River valley by a road which wound for 100 miles (160 km) through the steep and forested Naga Hills.

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With this knowledge in hand, the Japanese decided to plan for an offensive of their own for an invasion of British India.

Battle of Imphal: UPSC Notes – Download PDF Here

Events during the Battle of Imphal

The operation to take Imphal was named ‘U-go’ by the Japanese Army. It consisted of elements from the 31st Infantry Division of the Japanese Army and as well as units from the Indian National Army, who were in primarily support and scouting roles. The Japanese Army crossed into India on the night of 7th March and engaging the  British Indian forces guarding the frontiers the morning of 8th March 1944

By March 12, elements of the British Army were so hard-pressed around the Indo-Burmese border that they were given permission to withdraw to the Imphal Plain. The withdrawal took 20 days to complete.

  • So precarious was the allied position that a decision was made to airlift reinforcements and supplies. The Indian 5th Division was flown in along with artillery guns, jeeps and pack animals between 19th and 29th March. By the time the first elements of the 5th Division arrived, the Japanese were only 48 km from Imphal
  • On 26th March the battle for Sangshak had taken place whose outcomes would decide the battle of Imphal. The 50th Parachute Brigade put up a strong defensive action that delayed the Japanese advance and inflicted heavy casualties on them. The delay cost the Japanese precious time and bought the defenders of Imphal enough time to shore up defences
  • On March 29th the Japanese Army cut-off the Imphal-Kohima road and effectively laid siege Imphal
  • The Siege of Kohima began on 4th April 1944. Kohima was important as it allowed access into India directly from Myanmar
  • Fierce fighting took place in an around Kohima and Imphal for the entirety of April, However, fresh divisions coming in from the Indian mainland ensured that all Japanese advance was halted by 1st May
  • The Japanese Army had overstretched their supply lines and most were starving and in no position to take Imphal by this point
  • The defenders at Imphal were helped immensely when the Japanese were routed at Kohima as it enabled Allied soldiers could now hit them hard in the south. 
  • The siege was formally ended on June 22nd when British troops at Kohima reached the advance elements from the 5th Indian Division at a point called Milestone 107 along the Imphal-Kohima road.  
  • On July 18th, the Japanese High Command decided that withdrawal was required to the River Chindwin on the Burma side of the Burma/Indian border. There were 53,000 casualties on the Japanese side while the British side faced a loss of 17,000 men, killed or wounded.

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Significance of the Battle of Imphal

The disastrous defeat at the battle of Imphal only had added to the misfortunes suffered by the  Japanese in 1944. With most of the experience fighting men lost at Imphal, there was no stopping the Allied advance into Burma the following year. The manpower needed to defend its other holdings in Southeast Asia were expended in a gamble that yielded no-dividends.

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Frequently asked Questions about the Battle of Imphal

Why is the battle of Imphal so important?

The outcome of the battle of Imphal was a turning point of one of the most gruelling campaigns of the Second World War (1939-45). The decisive Japanese defeat in north-east India became the springboard for the British Fourteenth Army’s subsequent re-conquest of Burma.

What casualties did the Japanese army suffer following the battle of Imphal?

Along with 54,879 killed and wounded, Japanese had also lost almost every one of the 12,000 pack horses and mules in their transport units and the 30,000 cattle used either as beasts of burden or as rations, and many trucks and other vehicles. The loss of pack animals was to cripple several of their divisions when the British would launch their offensive into Burma.

To know of other battles fought throughout Indian history refer to the links given below:

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