The Department of Defense announced today the deaths of three Marines who were supporting Operation Enduring Freedom. The following Marines died Sept. 8 while supporting combat operations in Kunar province, Afghanistan: Gunnery Sgt. Edwin W. Johnson Jr., 31, of Columbus, Ga. 1st Lt. Michael E. Johnson, 25, of Virginia Beach, Va. Staff Sgt. Aaron M. Kenefick, 30, of Roswell, Ga. Gunnery Sgt. Johnson and Staff Sgt. Kenefick were assigned to 3rd Combat Assault Battalion, 3rd Marine Division, III Marine Expeditionary Force, Okinawa, Japan. 1st Lt. Johnson was assigned to 7th Communications Battalion, 3rd Marine Headquarters Group, III Marine Expeditionary Force, Okinawa, Japan.