Shells fly as Capt. Joseph Michaels, an airfield manager with the 818th Contingency Response Group, shoots at his target during the live-fire portion of the Defensive Operations Course held here Jan. 12-15. A member of one of the Contingency Response Wing's airfield assessment teams, Captain Michaels' job can take him into areas with minimal force protection. The DOC provides training and sharpens the skills required to act as organic force protection in high-threat situations. (U.S. Air Force photo/1st Lt. Dustin Doyle)