Marine Corps aviators and crew chiefs prepare a UH-1Y Venom helicopter for takeoff during an aviation ordnance disposal and close air support exercise in support of Weapons and Tactics Instructors course 2-18 at Marine Corps Air Station Yuma, Yuma, Ariz., April 3, 2018. The Marines are assigned to Marine Aviation Weapons and Tactics Squadron 1. The seven-week training course is taught by Marine Aviation Weapons and Tactics Squadron 1 cadre. Marine Corps photo by Lance Cpl. Ashley McLaughlin