U.S. Marine Corps MV-22B Osprey aircrafts with Marine Medium Tiltrotor Squadron (VMM) 268, Marine Aircraft Group 16, 3rd Marine Aircraft Wing (MAW) sits on the runway at Eastern Sierra Regional Airport in Bishop, Calif., during Mountain Exercise (MTNEX) 1-15, Feb. 2, 2015. VMM-268 participated in MTNEX 1-15 in support of 2nd Battalion, 6th Marine Regiment, 2nd Marine Division, with Assault Support operations in a dynamic high altitude training environment. (U.S. Marine Corps photo by Cpl. Allison J. Herman, 3rd MAW Combat Camera/Released)