U.S. Air Force pararescuemen remove rebar blocking their path during an exercise at the San Xavier Mine, Ariz., May 4, 2023. The pararescuemen participated in a simulated rescue situation at the mine as part of RED FLAG-Rescue, the Defense Department’s premier combat search and rescue exercise, which is hosted twice a year at Davis-Monthan Air Force Base, Ariz. (U.S. Air Force photo by Airman William Finn)