During the Second Sino-Japanese War, the armed forces of the Communist Party of China were nominally incorporated into the National Revolutionary Army (while retaining separate commands), but broke away to form the People's Liberation Army shortly after the end of the war. With the promulgation of the Constitution of the Republic of China in 1947 and the formal end of the KMT party-state, the National Revolutionary Army has renamed the Republic of China Armed Forces (), with the bulk of its forces forming the Republic of China Army, which retreated to Taiwan in 1949.