After the war, earnest efforts were made to form a coalition government with the Guomindang and the communists.  When that failed the civil war between the two rekindled. 

The roughly three-year extension of the civil war saw the collapse of the Nanjing government and the Nationalists’ control of China. Eventually leading to in 1949, the inauguration of the Peoples Republic of China, by the communists, and the Nationalists’ flight to Taiwan.