Nanking (Nanjing) Nanking Massacre Chungking New Fourth Army Eighth Route Army National Revolutionary Army Hundred Regiments Offensive On New Democracy Red Army Kuomintang Yan'an
The Japanese had taken both Shanghai and Nanking (Nanjing)—resulting in the Nanking Massacre, an atrocity Mao never spoke of all his life—and was pushing the Kuomintang government inland to Chungking. The Japanese's brutality led to increasing numbers of Chinese joining the fight, and the Red Army grew from 50,000 to 500,000. In August 1938, the Red Army formed the New Fourth Army and the Eighth Route Army, which were nominally under the command of Chiang's National Revolutionary Army. In August 1940, the Red Army initiated the Hundred Regiments Offensive, in which 400,000 troops attacked the Japanese simultaneously in five provinces. It was a military success that resulted in the death of 20,000 Japanese, the disruption of railways and the loss of a coal mine. From his base in Yan'an, Mao authored several texts for his troops, including Philosophy of Revolution, which offered an introduction to the Marxist theory of knowledge; Protracted Warfare, which dealt with guerrilla and mobile military tactics; and On New Democracy, which laid forward ideas for China's future.
