page_title: History of the Republic of China
section_title: Second Sino-Japanese War (1937–1945)
hierarchical_section_title: History of the Republic of China / Second Sino-Japanese War (1937–1945)
context_page_description: The History of the Republic of China begins after the Qing dynasty in 1912, when the formation of the Republic of China as a constitutional republic put an end to 2,000 years of imperial rule. The Manchu-led Qing dynasty ruled China proper from 1644 to 1912. The Republic experienced many trials and tribulations after its founding which included being dominated by elements as disparate as warlord generals and foreign powers.
  In 1928, the Republic was nominally unified under the Kuomintang after the Northern Expedition, and was in the early stages of industrialization and modernization when it was caught in the conflicts involving the Kuomintang government, the Communist Party of China, local warlords, and the Empire of Japan. Most nation-building efforts were stopped during the full-scale Second Sino-Japanese War against Japan from 1937 to 1945, and later the widening gap between the Kuomintang and the Communist Party made a coalition government impossible, causing the resumption of the Chinese Civil War, in 1946, shortly after the Japanese surrender to the Allied Powers in September 1945.
context_section_description: Few Chinese had any illusions about Japanese desires on China. Hungry for raw materials and pressed by a growing population, Japan initiated the seizure of Manchuria on 18 September 1931 and established ex-Qing emperor Puyi as head of the puppet state of Manchukuo in 1932. The loss of Manchuria, and its vast potential for industrial development and war industries, was a blow to the Kuomintang economy. The League of Nations, established at the end of World War I, was unable to act in the face of the Japanese defiance.
  The Japanese began to push from south of the Great Wall into northern China and the coastal provinces. Chinese fury against Japan was predictable, but anger was also directed against Chiang and the Nanking government, which at the time was more preoccupied with anti-Communist extermination campaigns than with resisting the Japanese invaders. The importance of "internal unity before external danger" was forcefully brought home in December 1936, when Chiang Kai-shek, in an event now known as the Xi'an Incident, was kidnapped by Zhang Xueliang and forced to ally with the Communists against the Japanese in the Second Kuomintang-CCP United Front against Japan.
  The Chinese resistance stiffened after 7 July 1937, when a clash occurred between Chinese and Japanese troops outside Beijing (then named Beiping) near the Marco Polo Bridge. This skirmish led to open, though undeclared, warfare between China and Japan. Shanghai fell after a three-month battle during which Japan suffered extensive casualties, both in its army and navy. The capital of Nanjing fell in December 1937. It was followed by an onslaught of mass murders and rapes known as the Nanjing Massacre. The national capital was briefly at Wuhan, then removed in an epic retreat to Chongqing, the seat of government until 1945. In 1940 the collaborationist Wang Jingwei regime was set up with its capital in Nanjing, proclaiming itself the legitimate "Republic of China" in opposition to Chiang Kai-shek's government, though its claims were significantly hampered due to its nature as a Japanese puppet state controlling limited amounts of territory, along with its subsequent defeat at the end of the war.
  The United Front between the Kuomintang and CCP took place with salutary effects for the beleaguered CCP, despite Japan's steady territorial gains in northern China, the coastal regions and the rich Yangtze River Valley in central China. After 1940 conflicts between the Kuomintang and Communists became more frequent in the areas not under Japanese control. The entrance of the United States into the Pacific War after 1941 changed the nature of their relationship. The Communists expanded their influence wherever opportunities presented themselves through mass organizations, administrative reforms and the land- and tax-reform measures favoring the peasants and the spread of their organizational network, while the Kuomintang attempted to neutralize the spread of Communist influence. Meanwhile, northern China was infiltrated politically by Japanese politicians in Manchukuo using facilities such as Wei Huang Gong.
  In 1945 the Republic of China emerged from the war nominally a great military power but actually a nation economically prostrate and on the verge of all-out civil war. The economy deteriorated, sapped by the military demands of foreign war and internal strife, by spiraling inflation and by Nationalist profiteering, speculation and hoarding. Starvation came in the wake of the war, and millions were rendered homeless by floods and the unsettled conditions in many parts of the country. The situation was further complicated by an Allied agreement at the Yalta Conference in February 1945 that brought Soviet troops into Manchuria to hasten the termination of war against Japan. Although the Chinese had not been present at Yalta, they had been consulted and had agreed to have the Soviets enter the war in the belief that the Soviet Union would deal only with the Kuomintang government.
  After the end of the war in August 1945, the Nationalist Government moved back to Nanjin
caption: Chiang Kai-shek and Madame Chiang Kai-shek with Gen. Joseph Stilwell in Burma (1942).
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