USN SEALs attack a simulated enemy threat during Operation Urban Corkscrew as part of Emerald Warrior 2013 at Camp Shelby, MS, April 29, 2013. The SEALs extracted two simulated downed helicopter pilots and returned them to safety during the operation. Emerald Warrior is an annual two-week joint/combined tactical exercise sponsored by US Special Operations Command designed to leverage lessons learned from operations Iraqi and Enduring Freedom to provide trained and ready forces to combatant commanders. (USAF photo by Staff Sgt. Chris Griffin)

[Image courtesy of the US Department of Defense Website.]