第4野戦軍
During the War of Liberation, 63,000 Koreans from Northeast China joined the People's Liberation Army, more than 100,000 joined local military forces and hundreds of thousands participated logistics supports. Soldiers in the 164th, 166th and 156th of the Fourth Field Army are mostly Koreans. They participated in the Siege of Changchun, Battle of Siping, Liaoshen Campaign, then continued to fight as far as in the Hainan Island Campaign.