U.S. Air Force Gen. Joseph Lengyel, (right), chief, National Guard Bureau, presents a challenge coin to Senior Airman William Hauser, a services specialist from the 193rd Special Operations Forces Support Squadron, Pennsylvania Air National Guard, April 7, 2018, at the 193rd Special Operations Wing, Middletown, Pennsylvania. Hauser and two other Airman were identified by 193rd SOFSS leadership to receive the honor due to their hard work and dedication within the squadron. (U.S. Air National Guard photo by Staff Sgt. Tony Harp/Released)