Heroes in training
First Lt. Eric Hansen, an 82nd Expeditionary Rescue Squadron combat rescue officer, provides security during a training scenario in the Grand Bara Desert, Djibouti, Oct. 21, 2011. The 360-degree security allows pararescuemen to concentrate their efforts on providing treatment to casualties and coordinating air evacuation support. (U.S. Air Force photo/Staff Sgt. Renae Saylock)