190112-N-FV745-0161 SAN DIEGO (Jan. 12, 2019) Sailors assigned to Coastal Riverine Squadron One (CRS-1) conduct security drills during a field exercise at Naval Air Station North Island in San Diego, January 12, 2019. CRS-1 is conducting extensive, quarterly training in preparation of future deployments. (U.S. Navy photo by Mass Communication Specialist 2nd Class Daniel James Lanari/Released)