Note 10-F — CHAPTER 10 Marines Meet the Challenge New American Decisions—A Restructured Military Assistance Command—Changes in Marine Leadership—Redesignation and Reorganization—The Vietnamese Marine Brigade—Additional Marine Activities

South Vietnam’s corps boundaries were adjusted again in late 1964. The southern boundary of I Corps was moved south to include Quang Ngai Province. The southern border of II Corps was also moved southward to include eight provinces formerly encompassed by III Corps. Under the new arrangement, III CTZ formed a narrow strip across the nation which centered roughly on Saigon. The Capital Military District, the boundaries of which coincided with those of Gia Dinh Province, formed an enclave within III Corps. The southernmost tactical zone, IV Corps, encompassed the entire Mekong Delta.