Around the time we won the victory in the war of resistance against Japanese aggression, the CPC Central Committee and the Central Military Commission began to rename some troops of the Eighth Route Army and the New Fourth Army and the South China People’s Anti-Japanese guerrillas as the liberation army. In the early days of the liberation war, the New Fourth Army and the Eighth Route Army were still used in public reports and some messages. After the all-round outbreak of the civil in June 1946, the Jiefang Daily used the worlding “the People’s Liberation Army” in its reports. In November of the same year, the CPC Central Committee used the “Chinese People’s Liberation Army” in the message celebrating Zhu De’s 60th birthday. In February 1947, Zhu De, for the first time in the name of “Commander-in-chief of the People’s Liberation Army,” signed the order to form the Shaanxi-Gansu-Ningxia field group army with Mao Zedong and Liu Shaoqi. As thus, the headquarters of the People’s Liberation Army (PLA) located in Yan’an had jurisdiction over all the PLA forces inside Shanhaiguan Pass and the Northeast Democratic Allied Army outside the Pass. The designation of Chinese People’s Liberation Army marks that the people’s revolutionary war and the people’s army building have entered a new historical period.