The Yan'an Soviet was a soviet governed by the Chinese Communist Party (CCP) during the 1930s and 1940s. In October 1936 it became the final destination of the Long March, and served as the Chinese Communist Party's main base until after the Second Sino-Japanese War. After the Chinese Communist Party and Kuomintang (KMT) formed the Second United Front in 1937, the Yan'an Soviet was officially reconstituted as the Shaan–Gan–Ning Border Region.