(Right to Left) Lt. Col. Bryan Alston receives the 931st Civil Engineer Squadron guidon from Col. Eric Vitosh, 931st Air Refueling Wing commander, during a change of command ceremony Nov. 5, 2017, at McConnell Air Force Base, Kan. Alston has more than 20 years of experience in civil engineering, general contracting and project management in both the public and private sectors. As the 931 CES commander, Alston will command a force of 64 Airmen responsible for short notice worldwide mobilization and deployments. (U.S. Air Force photo by Tech. Sgt. Abigail Klein)