Burma Campaign - Final Operations

Final Operations

Following the capture of Rangoon, a new Twelfth Army headquarters was created from XXXIII Corps HQ to take control of the formations which were to remain in Burma.

The Japanese Twenty-Eighth Army, after withdrawing from Arakan and resisting XXXIII Corps in the Irrawaddy valley, had retreated into the Pegu Yomas, a range of low jungle-covered hills between the Irrawaddy and Sittang rivers. They planned to break out and rejoin Burma Area Army. To cover this breakout, Kimura ordered Thirty-Third Army to mount a diversionary offensive across the Sittang, although the entire army could muster the strength of barely a regiment. On 3 July, they attacked British positions in the "Sittang Bend". On 10 July, after a battle for country which was almost entirely flooded, both the Japanese and the Allies withdrew.

The Japanese had attacked too early. Sakurai's Twenty-Eighth Army was not ready to start the breakout until 17 July. The breakout was a disaster. The British had placed ambushes or artillery concentrations on the routes the Japanese were to use. Hundreds of men drowned trying to cross the swollen Sittang on improvised bamboo floats and rafts. Burmese guerrillas and bandits killed stragglers east of the river. The breakout cost the Japanese nearly 10,000 men, half the strength of Twenty-Eighth Army. British and Indian casualties were minimal.

Fourteenth Army (now under Lieutenant General Miles Dempsey) and XV Corps had returned to India to plan the next stage of the campaign to re-take Southeast Asia. A new corps, the Indian XXXIV Corps, under Lieutenant-General Ouvry Lindfield Roberts was raised and assigned to Fourteenth Army for further operations.

This was to be an amphibious assault on the western side of Malaya codenamed Operation Zipper. The dropping of the atomic bombs forestalled this operation, but it was undertaken post-war as the quickest way of getting occupation troops into Malaya.