U.S. Coast Guard Petty Officer 2nd Class Clayton Ridley signals to the driver of a vehicle to enter an entry control point established by Port Security Unit 312 service members during the unit’s deployment to Port Hueneme, California, in support of the Department of Defense-led Pacific Blitz 2019 exercise, March 7, 2019. The eight Coast Guard Port Security Units provide waterborne and land-based Anti-Terrorism and Force Protection for shipping and critical port facilities in conjunction with harbor defense and coastal sea control operations at the end points of United States’ Sea Lines of Communications. U.S. Coast Guard photo by Petty Officer 1st Class Matthew S. Masaschi