Ever since 1934, two main political parties in China, Communist Party of China and Nationalists, were in a constant struggle for power. This animosity led to the Chinese Civil War, which started after the defeat of Japan in 1945 and lasted until 1949. Throughout those years KMT gradually lost its support because they were brutal and were corrupt. In the end the Communist Party of China (CCP) won.
Although the surrender of Japan meant a great victory for China, the situation had not developed as expected for the head of KMT, Chiang Kai Shek. First of all, the war ended too early. Had the Japanese resisted longer, Chiang believed that the Americans would set up their air bases and armies in China and as a result they would defeat not only the Japanese but also overwhelm the Communist party.
However, the Americans chose the Pacific Islands instead of China and Chiang´s plans fell apart. Another problem was the Russian occupation of Manchuria after their declaration of war on Japan, issued after the bombing on Hiroshima and Nagasaki on August 9. Furthermore, CCP resistance disabled KMT to claim the liberated areas. All of these factors undermined the power of KMT and contributed to the rise CCP.
Although CCP was much weaker when it came to military power, their strategy, morale and...