'Bisto' was a British unrealised plan for an operation by Lieutenant General Sir Montagu Stopford’s 12^th Army (successor to Lieutenant General Sir William Slim’s 14^th Army from 28 May 1945) against the coastal area of Moulmein on the coast of the southern appendix of Japanese-occupied Burma (July 1945).

At Moulmein were located the headquarters of General Heitaro Kimura’s Burma Area Army, together with the vastly reduced remnants of Lieutenant General Kiyoe Yamamoto’s 15^th Division, Lieutenant General Tsuchitaro Kawada’s 31^st Division, Lieutenant General Nobuo Tanaka’s 33^rd Division and Major General Takayoshi Sakuma’s 24^th Independent Mixed Brigade, while farther to the north, in the area of the 'appendix' between Mokpalin and Bilin, was Lieutenant General Masaki Honda’s 33^rd Army with Lieutenant General Eitaro Naka’s 18^th Division, Lieutenant General Saburo Takehara’s 49^th Division, Lieutenant General Yoshihide Hayashi’s 53^rd Division and Major General Kenehiro Yamamoto’s 72^nd Independent Mixed Brigade.