U.S. Air Force Airmen from the 325th Fighter Wing listen to U.S. Army Command Sgt. Maj. John Wayne Troxell, Senior Advisor to the Chairman of the Joint Chiefs of Staff, during an all-call in Hangar 43 at Tyndall Air Force Base, Fla., April 23, 2018. During the all-call, Troxell focused on the need for readiness in current warfighting operations within the Department of Defense. (U.S. Air Force photo by Airman 1st Class Solomon Cook/Released)