Airman 1st Class Timothy Jansen, 823d Base Defense Squadron (BDS) fire team member, keeps watch from his defensive fighting position during the Mission Readiness Exercise (MRX) at Camp Guernsey, Wyo., March 25, 2019. Throughout the MRX the 823d BDS practiced adaptive basing in support of National Defense Strategy objectives. (U.S. Air Force photo by 1st Lt. Faith Brodkorb)