China Sends Naval Forces to Monitor US Warship Near Disputed Shoal

China said it sent forces to track and monitor the USS Charleston after it entered waters near Sabina Shoal on Tuesday. Beijing called the move illegal, saying it threatened maritime security and regional stability. The United States did not immediately comment.

The Philippines rejected China’s accusation, saying the ship did not enter Chinese territory. Its military said no country could demand prior permission for lawful passage through international waters. The dispute matters because China, the Philippines, Taiwan, and Vietnam have overlapping claims in the South China Sea.

The episode shows how patrols can become diplomatic confrontations without a reported clash. Last month, a Chinese Coast Guard vessel reportedly rammed a Philippine boat near the same shoal. China and the Philippines contest Sabina Shoal, while Manila’s mutual defense treaty with Washington adds wider security concerns.

Sabina Shoal is a shallow reef area in the Spratly Islands, in the South China Sea. It matters because China and the Philippines both claim sovereignty over it, making patrols and resupply missions politically sensitive.

In September, the Philippine Coast Guard said a China Coast Guard vessel rammed a Philippine boat near Sabina Shoal. The boat was conducting a refueling mission. China rejected that account and blamed the Philippine side, showing how competing claims can quickly produce confrontations.

On October 20, China said it monitored the USS Charleston after the warship entered waters near the shoal. The Philippines said the ship did not enter Chinese territory and needed no prior permission to transit international waters. The standoff shows the dispute affects military operations, maritime security, and regional stability.

Six governments claim parts of the South China Sea: China, Brunei, Malaysia, the Philippines, Taiwan, and Vietnam. Their overlapping claims make the waterway a major source of diplomatic and military tension, especially around the Spratly Islands.

A recent example occurred near Sabina Shoal, where China said the US warship USS Charleston entered waters without permission. China sent forces to track it, while the Philippines said no country could demand permission for lawful transit through international waters. China and the Philippines also contest sovereignty over Sabina Shoal and the wider Spratly archipelago.

The dispute remains active rather than settled. The article says a Chinese coast guard vessel rammed a Philippine boat near Sabina Shoal, according to the Philippine Coast Guard. Taiwan also reported a separate standoff near the Pratas Islands. These incidents show how competing claims can trigger confrontations involving coast guards, naval forces, and outside powers.

A freedom of navigation operation, or FONOP, is a planned naval passage challenging excessive maritime claims. The US Navy uses it to support the principle that ships may lawfully travel through international waters without prior permission.

On Tuesday, China said USS Charleston entered waters near Sabina Shoal without approval. China called the move illegal and sent forces to track it. The Philippines said no country could demand permission for lawful transit through international waters.

These missions signal that disputed waters should remain open, while avoiding recognition of another country's claimed control. The article says the Navy's last known South China Sea operation occurred over a year earlier. Such patrols can defend navigation rights, but they also risk sharper encounters when rival governments dispute sovereignty. They are therefore both legal statements and deliberate tests of restraint at sea.

When countries dispute ownership at sea, an encounter can quickly become a dangerous standoff. Ships may track, warn, block, or accuse one another of illegal entry, raising the risk of collision and conflict.

On Tuesday, China said it sent forces to monitor USS Charleston near Sabina Shoal. The Philippines said the ship was lawfully transiting international waters, showing how opposing legal claims can produce competing accounts. Last month, a China Coast Guard vessel reportedly rammed a Philippine boat near the same shoal.

These confrontations can also become political and military signals. Near Taiwan’s Pratas Islands, Chinese and Taiwanese ships exchanged opposing broadcasts while a standoff continued. China and the Philippines have a mutual defense treaty with the United States, so an accident might involve allies. Frequent patrols therefore increase pressure, even without fighting.

The treaty links an attack on the Philippines to a potential US security response, making encounters near Philippine-claimed waters more consequential. It signals that a local maritime dispute could affect the wider US-China relationship, although the article does not say the treaty was activated.

That risk is visible at Sabina Shoal, where China and the Philippines contest sovereignty. China said it tracked USS Charleston after alleging the ship entered nearby waters; a Philippine spokesperson said the ship lawfully transited international waters. The treaty means incidents involving Philippine forces could carry greater escalation risks because Washington is Manila’s treaty ally.

Recent events show why this matters. Last month, the Philippine Coast Guard said a China Coast Guard vessel rammed a Philippine refueling boat near the same shoal. The article reports no US military response or treaty invocation. Going forward, the treaty increases pressure for careful crisis management, while disputed sovereignty and competing accounts remain unresolved.

Under international maritime law, coastal states control territorial waters up to 12 nautical miles from their baselines. Ships generally retain innocent passage there, if transit is continuous and does not threaten security. Beyond territorial waters, an exclusive economic zone may extend. Coastal states control resources there, while the high seas remain open to navigation.

The USS Charleston episode shows the dispute. China said the ship entered waters near Sabina Shoal without approval and sent forces to monitor it. The Philippines replied that no country may demand prior permission for lawful transit through international waters. The key issue is whether the area is territorial water, international water, or contested; passage rules depend on that classification.

These rules do not settle sovereignty claims automatically. China, the Philippines, Taiwan, and others contest parts of the South China Sea. Last month, Chinese and Philippine vessels collided near Sabina Shoal. Such disputes can quickly become safety crises, making communication and restraint essential.