2023 Defender Challenge Team Air Force District of Washington gets ready for the ruck march portion of the fitness category at the Fort Bliss Doña Ana Range Complex near Chaparral, New Mexico, Oct. 26, 2023. The competition, hosted by the Air Force Security Forces career field and planned and executed by the Air Force Security Forces Center, determines the best-of-the-best security forces teams and individuals using a variety of base ground defense scenarios. Eleven teams of five represented each Air Force major command. This is the first Defender Challenge since the COVID-19 pandemic with organizers hoping to now return to a biennial schedule. (U.S. Air Force photo by Debbie Aragon)