Senior Airman Mark Bush, Multinational Division Baghdad military working dog handler, and MWD Chukky search for explosives during a training session at Camp Victory, Iraq, Oct. 28, 2009. After being deployed twice together, Bush, now a staff sergeant with the 28th security forces squadron, adopted Chukky July 10, 2015, following four years of separation. (U.S. Air Force photo by Tech. Sgt. Johnny L. Saldivar/Released)