Sgt. Kyle Harrison stands watch as Marines disembark an MV-22B Osprey aircraft.
U.S. Marine Corps Sgt. Kyle Harrison (right), a crew chief with Marine Medium Tiltrotor Squadron 365, stands watch as Marines with the 2nd Battalion, 6th Marine Regiment and Bone, a military working dog, disembark an MV-22B Osprey aircraft in Helmand province, Afghanistan, on March 28, 2012.