U.S. Air Force Airman 1st Class Tyler Winterton (center), crew chief with the 340th Expeditionary Air Refueling Squadron, give eighth grade students and teachers from American School of Doha, a tour of a KC-135 Stratofortress at Al Udeid Air Base, Qatar, Feb. 22, 2018. The students had the opportunity to learn about some of the capabilities the base offers the surrounding region in the U.S. Central Commands' area of responsibility. (U.S. Air National Guard photo by Staff Sgt. Patrick Evenson)