U.S. Marine Corps Lance Cpl. Julius E. Torres, an airframes mechanic assigned to Marine Attack Training Squadron 203, operates a power generator during a routine maintenance check on an AV-8B Harrier at Marine Corps Air Station Cherry Point, N.C., March 23, 2015. AV-8B Harriers undergo regular maintenance checks to ensure all parts on the aircraft function properly in order to maintain operational readiness. (U.S. Marine Corps photo by Lance Cpl. Koby I. Saunders/Released)