The term "China Theater" refers to the region in East Asia where significant military operations took place during World War II, particularly involving the conflict between the Allied Powers and Japan. This theater included areas such as China, Burma, and parts of Southeast Asia, where battles were fought to resist Japanese expansion. Key events in the China Theater included the Second Sino-Japanese War, which began in 1937, and the involvement of various forces, including the Chinese Nationalist Party and Communist Party of China. The theater was crucial for the Allies, as it diverted Japanese resources and contributed to the overall war effort against the Axis powers.