Gen. James T. Conway, commandant of the Marine Corps, right, promotes Lt. Gen. James F. Amos, formerly deputy commandant for combat development and integration, to general at Marine Barracks Washington July 2. Amos is slated to become assistant commandant July 8. - Gen. James T. Conway, commandant of the Marine Corps, right, promotes Lt. Gen. James F. Amos, formerly deputy commandant for combat development and integration, to general at Marine Barracks Washington July 2. Amos is slated to become assistant commandant July 8.