Burmese guerrillas and bandits killed stragglers east of the river. The break-out cost the Japanese nearly 10,000 men, half the strength of Twenty-eighth Army. Some units of 105 Independent Brigade were almost entirely wiped out. British and Indian casualties were minimal. Fourteenth Army (now commanded by Lieutenant General Miles Dempsey) and XV Corps had returned to India to plan the next stage of the campaign to re-take south east Asia. A new corps, the XXXIV Corps under Lieutenant-General Ouvry Lindfield Roberts, was raised and assigned to Fourteenth Army for further operations. The next intended operation was to be an amphibious assault on the western coast of Malaya, codenamed Operation Zipper. The dropping of the atomic bombs forestalled "Zipper" but the operation was undertaken post-war as the quickest way of getting occupation troops into Malaya.