U.S. Navy Electronics Technician 2nd Class Jairo Diaz, assigned to Coastal Riverine Squadron (CRS) 2, mans a .50-caliber machine gun aboard a MK VI patrol boat while providing high value asset protection for the aircraft carrier USS Theodore Roosevelt (CVN 71) as it transits to Apra Harbor, Guam, Oct. 31, 2017. CRS-2, assigned to Coastal Riverine Group (CRG) 1 Detachment Guam, is capable of conducting maritime security operations across the full spectrum of naval, joint and combined operations. Further, it provides additional capabilities of port security, embarked security, and theater security cooperation around the U.S. 7th Fleet area of responsibility. (U.S. Navy Combat Camera photo by Mass Communication Specialist 1st Class Benjamin A. Lewis)