This war-time shuffling provided the major building blocks for 4th Marine Division. The units were originally separated, however, with the 24th Marines and a variety of reinforcing units (engineer, artillery, medical, motor transport, special weapons, tanks, etc.) at Camp Pendleton in California. The rest of the units were at Camp Lejeune, North Carolina. This East Coast echelon moved to Pendleton by train and transit of the Panama Canal in July and August 1943. When all the units were finally together, the 4th Marine Division was formally activated on August 14, 1943, with Major General Harry Schmidt in command.