35 The 435th Contingency Response Group executed the opening and operating of an airfield after joint forcible entry into Cheshnegirovo Airfield, Bulgaria, during exercise Swift Response 21, May 11-12, 2021. Under cover of darkness, U.S. Air Force Airmen and U.S. Army Soldiers boarded a C-17 Globemaster III aircraft departing Pápa Air Base, Hungary, destined for uncertain terrain. Upon arrival, the first light of daybreak revealed a remote airfield surrounded by mountains and overgrown vegetation. Rapid airfield security and assessment were conducted by the 435th CRG team, and, after establishing initial airfield operations in a simulated contested environment, the joint delivery of troops and heavy equipment cargo was enabled.