U.S. Marines assigned to Marine Aerial Refueler Transport Squadron (VMGR) 252, receive a brief before an aerial refueling exercise on Marine Corps Air Station Cherry Point, N.C., Dec. 3, 2014. VMGR-252 conducted rotary wing aerial refueling exercises with Marine Heavy Helicopter Squadron 366. (U.S. Marine Corps photo by Lance Cpl. Koby I. Saunders/Released)