Massed, coordinated civilian-flagged flotillas probing territorial waters normalize coercion-by-presence and erode the day-to-day rule set that protects our navigation, enforcement capacity, and national sovereignty without open conflict. The conduct described is not clearly criminal under U.S. federal law on this record, but Japanâs seizure and detention are grounded in domestic fisheries enforcement against unauthorized operations inside territorial watersâprecisely the legal boundary these formations test. When states can apply pressure through âcivilianâ AIS-broadcasting fleets while denying formal directives, it creates a template for gray-zone intimidation that weakens the credibility of lawful maritime administration and makes escalation more likely.