Second Sino-Japanese War
Second Sino-Japanese War Second Sino-Japanese War , (1937–45), conflict that broke out when China began a full-scale resistance to the expansion of Japanese influence in its territory (which had begun in 1931). The war, which remained undeclared until December 9, 1941, may be divided into three phases: a period of rapid Japanese advance until the end of 1938, a period of virtual stalemate until 1944, and the final period when Allied counterattacks, principally in the Pacific and on Japan’s home islands, brought about Japan’s surrender. The establishment of Manchukuo and the creation of the United Front For much of the early 20th century, Japan had exercised effective control of Manchuria, initially through the terms of the Twenty-one Demands (1915) and later through its support of Chinese warlord Zhang Zuolin. However, a serious conflict was developing, and the Chinese in Manchuria were especially restive under the privileges held by the Japanese. Chinese citizens formed the vast ma