The First Marine Amphibious Corps or I MAC was a formation of the United States Marine Corps. Consisting of multiple divisions, the Amphibious Corps were the USMs invasion forces of the Pacific. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Listed Divisions- 1st Marine Division Marine Raiders 5th Marine Division 「🏭▸🖍️▸1st Marine Amphibious Corps」