Senior Airman Stephen Hanks, a military working dog handler assigned to the 447th Expeditionary Security Forces Squadron, and Geri, a patrol and explosive detector dog with the 447th ESFS, patrol the perimeter of Sather Air Base in Baghdad, Iraq, Dec. 11, 2011. For the last six months Geri and Hanks, have been supporting Operation New Dawn by providing explosive and psychological deterrence. Hanks and Geri are deployed from Patrick Air Force Base, Fla. Hanks is from Amherst, Mass.