U.S. Navy Master at Arms 2nd Class Phillip Darity, a U.S. Navy dog handler, issues commands to his military working dog, Argo, while conducting a simulated training drill. Argo, who is trained as a bomb and patrol dog, has served in the Navy for about one year and is making his first deployment. U.S. Navy photo by Photographer's Mate 1st Class Arlo K. Abrahamson