Senior Airman Zachary Yoakam, 28th Operations Support Squadron Survival Evasion Rescue Escape specialist, gives a safety briefing to participants of combat survival training at the Sturgis Training Compound, Sturgis, S.D., March 22, 2012. Yoakam ensures that the participants understand the training rules and guidelines for the survival exercise. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)