HOLTVILLE, Calif. (Oct. 5, 2020) U.S. Marine Corps MV-22B Ospreys, participating in the Weapons and Tactics Instructor (WTI) course 1-21, refuel utilizing the tactical aviation ground refueling system (TAGRS) during static forward arming and refueling point (FARP) training at Holtville Airfield, in Holtville, Calif., Oct. 5, 2020. The WTI course is a seven-week training event hosted by Marine Aviation Weapons and Tactics Squadron One, providing standardized advanced 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 photo by Cpl. Sarah Taggett)