A University of Massachusetts Reserve Officer's Training Program cadet takes a picture during a tour of a 459th Air Refueling Wing KC-135R Stratotanker at Joint Base Andrews, Maryland, March 21, 2017. The cadets had the opportunity to learn about the unit, its mission and the structure, function and capabilities of the KC-135. (U.S. Air Force photo/Tech. Sgt. Kat Justen)