U.S. Marines Cpl. Ryan L. Avery, left, a crew chief and Lance Cpl. Michael J. McGrath, a CH-53E Super Stallion mechanic, both with Marine Heavy Helicopter Squadron 462 (HMH-462), provide aerial security over Helmand province, Afghanistan, Oct. 28, 2013. HMH-462 supported Bravo Company, 1st Battalion, 9th Marine Regiment, during an interdiction operation in Gurjat Village. Official Marine Corps Photo by Sgt. Gabriela Garcia/Released.