U.S. Marine Corps Cpl. Nicholas J. Digregorio, left,

U.S. Marine Corps Cpl. Nicholas J. Digregorio, left, military working dog handler, receives a bite from a K-9 named Enzo, as he follows commands from his handler, Sgt. Amanda A. Phelps, right, military working dog handler, both with 2nd Law Enforcement Battalion, II Marine Expeditionary Force Headquarters Group (2nd MHG), II Marine Expeditionary Force (II MEF), during Exercise African Lion 15 at the Tifnit Training Center, Tifnit, Morocco, May 15, 2015. African Lion is a joint and combined exercise conducted in the Kingdom of Morocco enabling the Royal Moroccan Armed Forces and multinational forces to strengthen relationships and military operability in the region. (U.S. Marine Corps photo by Lance Cpl. Kelly L. Street, 2D MARDIV COMCAM/Released)