Activated 17 Sept. 1944. Tasked with the overall control and supply of all Marine Corps assets in theatre.

When FMFPAC was activated, four units were assigned. The 1st through the 4th Service and Supply Battalions and eight depots. The bulk of supply operations in the pacific was accomplished by black labor troops organized into depot and ammo companies. A total of 12 ammo companies were raised. 51 Depot companies were raised.  Every one of these units directly contributed to the combat effort by providing labor to load and unload tons of material to support Marines in the pacific. These units established a favorable reputation for black Marines by "...setting a high standard of discipline and combat effectiveness..." which led to an eventual integration of black Marines into desegregated units by the time of the Korean conflict.