U.S. Marine Corps bulk fuel specialists with Marine

U.S. Marine Corps bulk fuel specialists with Marine Wing Support Squadron (MWSS) 371 prepare an M970 fuel dispensing semitrailer at 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)