Members of the U.S. Coast Guard Marine Force Protection Unit (MFPU) Bangor execute a high-speed turn during force escalation training on the Puget Sound, WA, Nov. 4, 2025. Established on Jan. 13, 2010, under 33 CFR part 165.1327, the MFPU Security Zone is a 1000-yard zone around Naval Submarines: mariners are not permitted to enter this established area without permission from the Coast Guard via VHF channel 13 or 16. (U.S. Coast Guard photo by Petty Officer 3rd Class Daylan M. Garlic-Jackson)