Fort Stotsenburg, during the World War II era, was the location of the Philippine Department's 26th Cavalry Regiment, 86th Field Artillery Battalion, and 88th Field Artillery Regiment; along with the Philippine Division's 23rd and 24th Field Artillery Regiments. Also based here were the 12th Ordnance Company and a platoon of the 12th Quartermaster Regiment.

The 26th Cavalry Regiment (Philippine Scouts) (26th CAV (PS)) was part of U.S. Army Forces Far East's Philippine Department, during World War II. The 26th engaged in the last cavalry charge in the history of the U.S. cavalry. The American Battle Monuments Commission list 301 dead who were members of this regiment interred at Manila American Cemetery and Memorial.