U.S. Air Force Airman 1st Class Samuel Scanlon, 380th Expeditionary Civil Engineer Squadron (ECES) operations flight structures journeyman (left), and Senior Airman Yohannys Mendez, 380th ECES pavements and construction equipment journeyman, mix rapid-setting cement in a large hole created during a Rapid Airfield Damage Recovery (RADR) exercise at Al Dhafra Air Base, United Arab Emirates, Nov. 20, 2020. During the exercise, 380th ECES Airmen used heavy machinery such as excavators to remove large sections of simulated damaged concrete from a vacant pad before filling the resulting holes to restore a smooth surface. (U.S. Air Force photo by Staff Sgt. Zade Vadnais)