U.S. Air Force Senior Airman Michael Shepperd, 46th Aerial Port Squadron, fastens a tie down to a C-17 Globemaster III to stabilize a vehicle in flight during Patriot Hook 2012, San Clemente Island Naval Auxiliary Landing Field, Calif., March 17, 2012. Patriot Hook 2012 is an Air Force Reserve Command sponsored exercise that deploys Tanker/Airlift Control Elements to three locations and assembles units from the Air Force Reserve, Navy, Coast Guard, Federal Emergency Management Agency, Border Patrol Search Trauma and Rescue, and other agencies to confirm the viability of coordinated security, disaster and contingency response operations.