U.S. Marines with the 3rd Battalion, 6th Marine Regiment prepare to board a CH-53E Super Stallion helicopter during Assault Support Tactics 3, an exercise in support of Weapons and Tactics Instructor Course 2-14, in Yuma, Ariz., April 18, 2014. The Weapons and Tactics Instructor Course, hosted by Marine Aviation Weapons and Tactics Squadron (MAWTS) 1, is 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 Lance Cpl. Adrianna R. Lincoln/Released)