U.S. Marine Corps Lance Cpl. Ryan Cordell, CH-53 crew chief, Marine Heavy Helicopter Squadron-465, Marine Aircraft Group 16, 3d Marine Air Wing, watches an aerial refueling aboard a CH-53E Super Stallion, at Marine Corps Air Station Yuma, Ariz, March 28, 2014. The aerial refueling took place during a CH-53 Battle Illumination exercise, as part of Weapons and Tactics Instructor (WTI) Course 2-14. WTI is a seven-week training event hosted by MAWTS-1 cadre, providing standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photograph by Lance Cpl. Xzavior T. McNeal, COMCAM/ Released)