U.S. Marine Corps Sgt. Joseph Kadi, right, an aviation

U.S. Marine Corps Sgt. Joseph Kadi, right, an aviation communication systems technician with Marine Tactical Air Command Squadron 38, supervises the install of grounding rods for high-frequency antennas in Yuma, Ariz., April 1, 2014, during Weapons and Tactics Instructor (WTI) Course 2-14. The WTI 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 Capt. Keith Stevenson/Released)