It was last located in the Shenyang Military Region and the Northern Theater Command.

[1] In the morning of Oct. 25, the 118th Division of the 40th Army ambushed the 3rd Infantry Battalion of ROK 6th Division, destroying the ROK unit as an organized force.

[citation needed] The 40th Army attacked the 9th and 38th Infantry Regiments of the U.S. 2nd Infantry Division about eighteen miles northeast of Kunu-ri along the Chongchon River.

[2] In May 1989, the 40th Army's 118th Infantry Division and Artillery Brigade were deployed to Beijing to enforce martial law and suppress the 1989 Tiananmen Square protests.

[3][better source needed] This article related to the military of China is a stub.