Service members from the San Francisco-based U.S. Coast

Service members from the San Francisco-based U.S. Coast Guard Port Security Unit 312 aboard a 32-foot Transportable Port Security Boat enforce a security zone around a naval vessel in 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. The Coast Guard provides forces to the Department of Defense in joint military operations worldwide including the deployment of cutters, boats, aircraft and deployable specialized forces in and around harbors to protect DoD force mobilization operations in the U.S. and in expeditionary operations overseas. U.S. Coast Guard photo by Petty Officer 1st Class Matthew S. Masaschi