U.S. Air Force Lt. Col. Dwayne Slack, 307th Maintenance Group deputy commander, looks out over the flightline at RAF Fairford, England, Sept. 11, 2018. He enlisted in 1988 in the Air Force Reserve and has served continuously for more than 30 years, including several deployments overseas. (U.S. Air Force photo by Master Sgt. Ted Daigle)