In early 1942 Marshall was given additional duty as Deputy Chief of Staff of USAFFE (U.S. Armed Forces Far East) when it was used to provide a US Army agency for Gen. MacArthur to exercise command over US Army troops in SWPA (South West Pacific Army). Increase in size of SWPA Command rapidly increased the administrative problems of Gen. MacArthur's Headquarters. In November, 1944, he was detailed as Gen. MacArthur's Chief of Staff, USAFFE. When MacArthur became commander of AFPAC (U.S. Army Forces in the Pacific), Marshall became Deputy Chief of Staff.