Taiwan is being urged to pay closer attention to China's coast guard, research ships, and fishing boats near its waters, since repeated incursions could let Beijing quietly normalize control without a single military clash — a development that's bad for Taiwan's grip on its own waters.

• Officials warn China is using coast guard patrols, research vessels, and fishing fleets alongside military shows of force to slowly chip away at Taiwan's control over its surrounding seas.
• In October, Chinese coast guard, research, and fishing vessels showed up near multiple Taiwanese coastal areas and outlying islands, entering restricted waters and disrupting local fishing; Taiwan's coast guard responded with monitoring and escort operations.
• One Chinese coast guard ship reportedly turned off its tracking system while entering restricted waters near an outlying island and broadcast messages denying Taiwan's statehood.
• The risk flagged is that Taiwan could keep the islands themselves while losing control of the surrounding seas, as routine fishing and research activity gets used as cover to assert administrative claims.
• Experts say enforcement should focus on legal authority case-by-case, rather than getting bogged down debating whether specific boats count as militia.

Outlook: Expect continued low-level incursions by Chinese coast guard, research, and fishing vessels in the near term, with Taiwan's response hinging on steady, routine enforcement rather than big military moves.