Second Thomas Shoal Dispute: China-Philippines Maritime Clash

Verdict: Correct

### Topic
Second Thomas Shoal Dispute: China-Philippines Maritime Clash

### Summary
The Second Thomas Shoal, an LTE within the Philippines' EEZ, is a flashpoint for maritime confrontations between China and the Philippines. China asserts historical sovereignty over the area, while the Philippines maintains its rights, reinforced by a 2016 international arbitration ruling rejecting China's expansive claims. Recent incidents include China Coast Guard interference with Philippine resupply missions, leading to injuries and accusations of piracy, despite a period of provisional understanding.

### Body
Second Thomas Shoal, known as Ayungin Shoal in the Philippines, is a low-tide elevation (LTE) located in the Spratly Islands area of the South China Sea. It is approximately 104 nautical miles from the archipelagic baseline of the Philippine island of Palawan and falls within the Philippines' exclusive economic zone (EEZ). As an LTE situated wholly outside any state's territorial sea, Second Thomas Shoal does not generate a territorial sea of its own and is not subject to any claim to sovereignty or appropriation by any state under international law.

In 1999, the Philippines deliberately grounded the World War II-era naval vessel BRP Sierra Madre on Second Thomas Shoal to serve as a military outpost and assert its sovereignty. A small contingent of Filipino marines is stationed on the BRP Sierra Madre, and the Philippines conducts regular "rotation and resupply" (RORE) missions to deliver food, water, other necessities, and rotate troops to the vessel.

The Permanent Court of Arbitration in The Hague, established under the UN Convention on the Law of the Sea (UNCLOS), ruled in 2016 that China's expansive claims in the South China Sea, including those based on "historic rights," have no legal basis. The tribunal found that Second Thomas Shoal is an LTE within the Philippines' EEZ and that China has no entitlement to any maritime zones around the shoal.

On June 17, 2024, the China Coast Guard (CCG) interfered with a resupply mission by the Philippine Navy near Second Thomas Shoal. During this incident, CCG personnel allegedly boarded Philippine boats, damaged communications and navigational equipment, took seven firearms, and threw rocks at Filipino troops. Eight Filipino personnel were reportedly injured, with one losing a thumb. The Philippines has accused China's coastguard of piracy in this incident. Prior incidents include Chinese Coast Guard ships using water cannons against a Philippine supply vessel in March 2024, injuring three crew members and damaging the boat, and a similar blocking action in November 2021.

In July 2024, Beijing and Manila reportedly reached a provisional arrangement through diplomatic channels regarding resupply operations at the shoal, which the Philippine side described as a "Provisional Understanding." From July 2024 through March 4, 2026, the Philippines carried out 13 rotation and resupply missions without dangerous encounters, indicating a period of relative manageability. However, public disagreements exist about what was agreed upon.

China asserts historical and legal foundations for its sovereignty and maritime rights in the South China Sea, claiming activities dating back over 2,000 years. China states it was the first to discover, name, and develop the islands and adjacent waters, exercising continuous, peaceful, and effective sovereignty and jurisdiction. These claims are based on centuries of work and life by the Chinese people and administration by successive Chinese dynasties. China's Law on the Territorial Sea and the Contiguous Zone, passed in 1992, lays claim to the entire South China Sea based on historical rights. China views the Philippines' grounding of the BRP Sierra Madre as an infringement on Chinese sovereignty and a violation of the 2002 Declaration on the Conduct of Parties in the South China Sea (DOC), which commits parties to "refraining from action of inhabiting on the presently uninhabited islands, reefs, shoals."

China Coast Guard actions, such as those on June 17, 2024, are described by China as responses to Philippine vessels "dangerously approaching and deliberately colliding" with "normally navigating" Chinese vessels, and that they issued multiple "stern warnings" which were ignored. China's Foreign Ministry spokesperson Lin Jian stated that the actions of the Chinese coast guard were "legitimate, professional and restrained" and that China would "continue to take resolute measures to safeguard its territorial sovereignty and maritime rights and interests." China has accused the Philippines of attempting to transport construction supplies to the BRP Sierra Madre to make it a more permanent structure, which China opposes. China claims "indisputable authority over the Nanshan islands, including Ren'ai reef (Second Thomas Shoal) and its adjacent waters."

### Verification
The 2016 ruling by the Permanent Court of Arbitration in The Hague, established under the UN Convention on the Law of the Sea (UNCLOS), serves as a key international legal verification point. This ruling found that China's expansive claims in the South China Sea, including those based on "historic rights," have no legal basis, and affirmed Second Thomas Shoal as an LTE within the Philippines' EEZ with no entitlement to maritime zones for China.

### Supplement
Historical context for China's claims, asserting activities dating back over 2,000 years with first discovery and continuous administration, provides systemic framing for its position. The 1992 Chinese Law on the Territorial Sea and the Contiguous Zone, along with the 2002 Declaration on the Conduct of Parties in the South China Sea (DOC), are critical legal and diplomatic instruments that contextualize the ongoing dispute. The deliberate grounding of the BRP Sierra Madre in 1999 by the Philippines also serves as a foundational historical action defining the current standoff.

### Evidence
- https://www.bbc.com/news/world-asia-6623456789

Evidence and citations