This portion of Fort Shafter housed the headquarters of the commanding general and his staff, U.S. Army forces, Pacific Ocean Areas, during World War II. By 1944 this command was responsible for the supply and administration of all U.S. Army personnel in the Central and South Pacific, and from 1943 to 1945, carried out logistical planning for the invasions of the Gilberts, Marshalls, Marianas, Guam, Palau, and Okinawa.