The Chinese Civil War was fought between the Kuomintang-led government of the Republic of China and the forces of the Chinese Communist Party (CCP). Armed conflict continued intermittently from 1 August 1927 until Communist victory resulted in their near-complete control over mainland China on 10 December 1949.
The war is generally divided into two phases with an interlude. In 1926 and 1927, the KMT and CCP, allied with one another in the First United Front, had carried out a very successful campaign, the Northern Expedition, against warlords in central China. The CCP calls this the First Revolutionary Civil War. The united front broke up and war broke out between the KMT and the CCP on 1 August 1927. The CCP calls this the Second Revolutionary Civil War; it lasted until 1937.