United Kingdom Cpl. Mark Bone, an arming landing point commander with 664 Squadron, Army Air Corps, gets a quick seat belt lesson from U.S. Marine Sgt. John Leist, a crew chief with Marine Medium Tiltrotor Squadron 365, 3rd Marine Aircraft Wing (Forward), before a flight aboard an MV-22B Osprey here July 27. Gunnery Sgt. Steven Williams, July 27, 2010