220314-N-MJ716-1205 NAVAL BASE SAN DIEGO (March 14, 2022) Master-at-Arms 2nd Class Michael L. Kennedy mounts the M240b machine gun at the bow of a “Metal Shark” security boat during a simulated small boat attack drill. HPU patrols the base’s bay side perimeter and is responsible for maintaining the security of the ships, piers, and personnel on the waterfront. NBSD is celebrating 100 years of operation in San Diego since it was stood up in 1922. (U.S. Navy photo by Mass Communication Specialist 1st Class Austin Haist/Released)