大陸打通作戦
By April 1945, China had already been at war with Japan for more than seven years. Both nations were exhausted by years of battles, bombings and blockades. From 1941–1943, both sides maintained a "dynamic equilibrium", where field engagements were often numerous, involved large numbers of troops and produced high casualty counts, but the results of which were mostly indecisive. Operation Ichi-Go in 1944 changed the status quo, as Japanese forces were able to break through the inadequate Chinese defenses and occupy most of Henan, Hunan and Guangxi, connecting Japanese-held areas from north to south in a continuous front.