U.S. Air Force Staff Sgt. Matthew Ralston, 1st Operations Squadron survival, evasion, resistance and escape specialist, gives instructions to a pilot during the Water Safety Survival Course at Joint Base Langley-Eustis, Virginia, Sept. 15, 2022. Ralston instructs service members on a broad range of SERE methods including lifesaving skills to survive in emergency situations and how to maintain readiness against near-peer adversaries through hands-on training. (U.S. Air Force photo by Airman 1st Class Mikaela Smith)