The 823d Base Defense Squadron (BDS) trains at their main operating base during the Mission Readiness Exercise (MRX) at Camp Guernsey, Wyo., March 25, 2019. During the MRX, the 823d BDS practiced adaptive basing in support of National Defense Strategy objectives. This camp was assembled within five hours. (U.S. Air Force photo by 1st Lt. Faith Brodkorb)