U.S. Air Force Staff Sgt. Ryan Silva, 435th Security Forces Squadron contingency response member, holds a compass against a map while participating in a Survival Evasion Resistance Escape navigation course during exercise Agile Wolf 21-01 at Grafenwoehr Training Area, Germany, Nov. 17, 2020. Silva used the compass to estimate his location and plot a path back to a designated airfield. Agile Wolf 21-01 was designed to sharpen the 435th Contingency Response Group’s tactics, techniques and procedures for establishing expeditionary airfields on demand. (U.S. Air Force photo by Senior Airman Milton Hamilton)