Senior Airman Beau DeLeon, a civil engineer from the New Jersey Air Guard's 108th Contingency Response Group, takes cover during a simulated enemy attack at Joint Base McGuire-Dix-Lakehurst, N.J., March 29, 2012. DeLeon was participating in an exercise called Eagle Flag, along with more than 80 airmen from the Kentucky Air National Guard's 123rd Contingency Response Group and about 50 active duty soldiers from the U.S. Army's 690th Rapid Port Opening Element.