Under the political control of Deng, the Communist army took over Chongqing in late November 1949 and entered Chengdu, the last bastion of power of Chiang Kai-shek, a few days later. At that time Deng became mayor of Chongqing, while he simultaneously was the leader of the Communist Party in the southwest, where the Communist army, now proclaiming itself the People's Liberation Army, suppressed resistance loyal to the old Kuomintang regime. In 1950, the Communist Party-ruled state also seized control over Tibet.