LOS ANGELES - Coast Guard Port Security Unit 311 and U.S. Air Force Reserve Command personnel unload a new generation IV transportable port security boat from a U.S. Air Force Reserve Command C-17 at San Clemente Island during Exercise Patriot Hook, March 15, 2012. During Patriot Hook, an exercise simulating a joint force response to a natural disaster, PSU members successfully tested their ability to mobilize within 96 hours and establish sustained operations within 24 hours. U.S. Coast Guard photo by Petty Officer 2nd Class Michael Anderson.