Secretary of the Air Force Barbara M. Barrett speaks to Airmen deployed to the 724th Expeditionary Air Base Squadron during her visit to Nigerien Air Base 201, Niger, Dec. 21, 2019. While at the installation, Barrett learned how each unit supports the mission from building the future of the base to defending its assets and personnel. (U.S. Air Force photo by Staff Sgt. Alex Fox Echols III)