U.S. Army Sgt. Elisa Delvalle, a native of Dallas, Texas, and military working dog "Chico" assist the 1st Battalion, 22nd Brigade, 6th Iraqi Army Division as they conduct clearing operations of a neighborhood in the Hariyah district, Baghdad, Iraq on Sep. 1, 2008. Delvalle is from the Liberty Kannels, attached to 2nd Brigade Combat Team, 101st Airborne Division.