U.S. Air Force Capt. Andrew Schnell, 435th Contingency Response Squadron assistant director of operations, center, arrives in Cheshnegirovo Airfield, Bulgaria, during exercise Swift Response 21, May 11, 2021. During the exercise, the 435th Contingency Response Group executed the opening and operating of an airfield after joint forcible entry. (U.S. Air Force photo by Senior Airman John R. Wright)