U.S. Marine Corps Lance Cpl. Vladimir Greenwood, a

U.S. Marine Corps Lance Cpl. Vladimir Greenwood, a bulk fuel specialist with Marine Wing Support Squadron (MWSS) 371, carries an aircraft refueling hose toward a forward arming refueling point April 5, 2014, at Landing Zone Bull Assault near Yuma, Ariz., during Weapons and Tactics Instructor Course 2-14. The course, hosted by Marine Aviation Weapons and Tactics Squadron 1, was designed to teach the six functions of Marine Corps aviation while providing the closest experience to real combat strategy, tactics and execution. (U.S. Marine Corps photo by Capt. Keith Stevenson/Released)