Chief Master Sgt. of the Air Force Kaleth O. Wright tries a counter-unmanned aircraft systems known as a 'Drone Defender' during a visit with the 455th Expeditionary Security Forces Squadron at Bagram Airfield, Afghanistan, Dec. 25, 2018. Wright and Chief of Staff of the Air Force Gen. David L. Goldfein spoke about the Year of the Defender and the changes the Airmen will see during training exercises. (U.S. Air Force photo by Senior Airman Kaylee Dubois)