U.S. Marine Lance Cpl. Roger Lineberger, a crew chief

U.S. Marine Lance Cpl. Roger Lineberger, a crew chief assigned to Heavy Marine Helicopter Squadron 462, Marine Aircraft Wing, Marine Corps Air Station Miramar, Calif., services a CH-53E Super Stallion helicopters during Integrated Training Exercise 2-15 at Marine Corps Air Ground Combat Center (MCAGCC) Twentynine Palms, Calif., Feb. 13, 2015. MCAGCC conducts relevant live-fire combined arms training, urban operations and joint/coalition-level integration training that promote operational forces readiness. (U.S. Air Force photo by Tech. Sgt. Efren Lopez/Released)