U.S. Air Force Staff Sgt. Patrick Stone, a dog handler and his dog Vaulk assigned to the 732nd Support Squadron, sweep the compound of the Hawijah Joint Coordination Center before the handover ceremony from Alpha Company, 1st Battalion, 87th Infantry, 1st Brigade, 10th Mountain Division, Fort Drum, N.Y., to local Iraqi security forces, allowing local security forces to assume full responsibility for safety and security of Hawijah.