U.S. Army soldiers from Personal Security Detail, Headquarters and Headquarters Troop, 3rd Advise and Assist Brigade, 1st Cavalry Division, provide external security at a checkpoint near Contingency Operating Base Adder, Iraq, Aug. 23, 2011. The Personal Security Detail conducts a counter improvised explosive device and counter indirect fire patrol in support of Operation New Dawn. (U.S. Army photo by Spc. Johnny Curry)