Guards of Honor
Senior Airman Larry Devonshire, 11th Bomb Squadron, practices a three-volley salute on Barksdale Air Force Base, La., April 23, 2013. A tradition which dates back to the European dynastic wars, where fighting ceased to collect the dead, and three shots were fired which signaled the battle could resume. (U.S. Air Force photo/Airman 1st Class Andrew Moua)