The First United Front (; alternatively ), also known as the KMT–CPC Alliance, of the Kuomintang (KMT) and the Communist Party of China (CPC), was formed in 1924 as an alliance to end warlordism in China. Together they formed the National Revolutionary Army and set out in 1926 on the Northern Expedition. The CPC joined the KMT as individuals, making use of KMT's superiority in numbers to help spread communism. The KMT, on the other hand, wanted to control the communists from within. Both parties had their own aims and the Front was unsustainable. In 1927, KMT leader Chiang Kai-shek purged the Communists from the Front while the Northern Expedition was still half-complete. This initiated a civil war between the two parties that lasted until the Second United Front was formed in 1936 to prepare for the coming Second Sino-Japanese War.