Determining the injuries
U.S. Air Force Lt. Col. David Blocker, 23rd Aerospace Medicine Squadron flight surgeon, demonstrates proper medical procedures during a phase II operational readiness exercise at Moody Air Force Base, Ga., Dec. 7, 2011. Blocker explained the importance of proficiently locating wounds and stopping blood loss. (U.S. Air Force photo by Airman 1st Class Olivia Dominique/Released)