U.S. Air Force Airmen from the 354th Civil Engineer Squadron renovate a cabin during a troop training project May 26, 2021, at the Birch Lake Military Recreation Area, Alaska. Troop training projects are a multi-craft annual readiness requirement for members of civil engineer squadrons that allow them to work together to construct a high quality product in a simulated contingency environment. (U.S. Air Force photo by Senior Airman Beaux Hebert)