Senior Airman Richard York, a member of the 720th Security Forces Squadron, based at Davis-Monthan Air Force Base, Arizona, retreats through smoke from an assaulting force during an area security operations exercise at Camp James A. Garfield Joint Military Training Center, Ohio, July 22, 2021. York participated in the Integrated Defense Leadership Course as an opposing force student. The IDLC was designed to provide Reserve Defenders with intensely focused hands-on training to achieve and maintain combat readiness. (U.S. Air Force photo/Eric M. White)