Service members from the San Francisco-based U.S. Coast Guard Port Security Unit 312 aboard 32-foot Transportable Port Security Boats patrol the waters near Port Hueneme, California, during the unit’s deployment to the region in support of the Department of Defense-led Pacific Blitz 2019 exercise, March 6, 2019. Port Security Units are comprised of organized, equipped and trained personnel to operate in joint environments, specifically in accessible, ice-free, harbors and port areas worldwide in support of the Department of Defense’s Geographic Combatant Commanders’ requirements for national defense and regional contingencies. U.S. Coast Guard photo by Petty Officer 1st Class Matthew S. Masaschi