Taiwan Says China Harassing Shipping With East Coast Patrol

China’s latest patrol involved two coast guard ships operating off Taiwan’s east coast. Chinese state media showed one vessel broadcasting a radio message that it was conducting law enforcement and could offer help. The broadcast was shown alongside footage of an unidentified fishing trawler.

Taiwan responded by sending its own coast guard forces to monitor the Chinese ships. It said China was trying to impose a fictional jurisdiction and expand its power through radio communications. Taiwan called the conduct a violation of international law and a threat to regional stability.

The incident fits a wider pattern. China has conducted regular coast guard patrols in the area since June. Taiwan views the eastern waters as important to possible wartime supply routes from allies and believes the patrols may help China practice a future maritime blockade.

“Harassing shipping” here means using coast guard activity and radio communications to pressure or intimidate vessels at sea. Taiwan says China’s messages were not simply safety notices. They were part of an attempt to act as though China had legal authority in waters Taiwan controls.

Chinese state media showed one coast guard ship broadcasting that it was conducting law enforcement and offering help if needed. The footage included an unidentified fishing trawler, but China did not say exactly whom the message addressed. Taiwan described these communications as a clear expansion of power.

The dispute matters because radio calls can reinforce a physical presence without firing a shot. Taiwan says the conduct undermines peace and violates international law. China’s patrols and broadcasts also contribute to Taiwan’s concern that Beijing is testing methods for a possible maritime blockade.

The article describes repeated activity rather than a single isolated encounter. China has increased coast guard operations off Taiwan’s east coast since June, conducting regular patrols. Taiwan says these actions may be practice for a blockade involving military, paramilitary, and civilian assets.

The latest east coast patrol involved two Chinese ships, and Taiwan sent its own vessels to monitor them. Separately, China sent another coast guard ship close to the Taiwan-controlled Pratas Islands. Taiwan says it has expelled Chinese coast guard vessels from Pratas waters 13 times so far this year.

The figures show pressure in more than one location. The article does not give a total number of east coast patrols or define how often individual encounters occurred. It does show continuing activity around Taiwan’s eastern approaches and the Pratas, suggesting that maritime confrontations remain a recurring security issue.

An exclusive economic zone is a maritime area extending up to 200 nautical miles from a coastal state’s baseline under widely accepted international law. The coastal state normally has special rights to explore, use, conserve, and manage natural resources there. These include fish, oil, gas, and energy from water or winds.

An EEZ is not the same as territorial waters. A country normally does not have complete sovereignty over every activity in an EEZ. Other countries generally retain navigation and overflight freedoms, subject to applicable law. Disputes can arise over boundaries, resources, enforcement, and competing coastal claims.

Taiwan says it holds sovereign rights and jurisdiction over the EEZ east of the island. China rejects Taiwan’s sovereignty claims and says it has authority over Taiwan-related waters. The article presents those opposing positions but does not detail the precise maritime boundary or legal arguments.

The sea off Taiwan’s east coast matters because Taiwan regards it as critical to wartime supply routes from allies. If conflict disrupted other approaches, ships using the eastern side could become an important way to move goods and support toward Taiwan.

The article gives no detailed map or list of supplies. It does identify the eastern waters as strategically important and says Taiwan’s officials believe China is practicing for a potential maritime blockade. Such practice could combine military, paramilitary, and civilian assets rather than relying on warships alone.

That makes the patrols significant even without a clash. Chinese coast guard vessels can establish a visible presence, issue radio messages, and challenge Taiwan’s jurisdiction claims. Taiwan’s coast guard therefore sent ships to keep watch. Continued activity could increase risks for shipping and complicate any future effort to keep supply routes open.

A maritime blockade is an effort to restrict or prevent shipping from reaching a country, port, or area. It can use warships, coast guard vessels, aircraft, patrols, inspections, or other pressure. The goal is to control movement without necessarily launching an immediate attack on every vessel.

In this case, Taiwan says China may be practicing a blockade using overlapping military, paramilitary, and civilian assets. Regular coast guard patrols could help establish patterns, test responses, and normalize claims of authority. The article does not say that a blockade is underway; it describes it as a potential scenario.

If shipping routes were blocked during conflict, Taiwan could face interruptions to supplies from allies. The eastern sea route is especially important because Taiwan identifies it as a critical wartime supply channel. A blockade could therefore create shortages, restrict outside assistance, and make Taiwan’s defense and civilian life more difficult.

The dispute exists because China and Taiwan claim different political and legal authority. China views Taiwan as its own territory and recognizes no sovereignty claims by Taiwan. Taiwan rejects Beijing’s sovereignty claims and says it has sovereign rights and jurisdiction over waters east of the island.

Those positions lead to opposing interpretations of coast guard activity. China presents its patrols as law enforcement. Taiwan views them as attempts to impose a fictional jurisdiction and expand power. Each side therefore treats the same ships and radio messages as evidence supporting a different claim.

The article does not provide a detailed historical account of how these opposing claims developed. It does establish the current reality: China is increasing patrols, while Taiwan monitors or expels Chinese vessels. The continuing disagreement raises tensions around Taiwan’s waters and could affect future shipping, especially during a crisis.