Constituted 1 October 1933 in the Organized Reserves. The history of XIV Army Corps in World War II dates from December 1942. Under Lieutenant General (then Maj. Gen.) Alexander M. Patch, the XIV Army Corps directed the Americal and 25th (Tropic lightning) Army Infantry Divisions, the 2nd Marine Division, and the 147th Separate Infantry Regiment in the final drive which expelled the Japanese from Guadalcanal early in February 1943. From air fields here guarded by the XIV Army Corps, Allied aircraft began the neutralization of the enemy's vital Munda airfields on New Georgia.