Philippines Pressures China Over Disputed Reefs

Competing claims and a 2016 arbitral ruling drive the Philippines' heightened focus on Panganiban (Mischief) Reef and Zamora (Subi) Reef, where frequent encounters between forces occur.

This long-standing dispute involves competing territorial claims and persistent encounters between Philippine and Chinese forces, bringing into sharp focus the 2016 South China Sea arbitral ruling.

The incident occurred during a legitimate maritime domain awareness flight over the Kalayaan Island Group, near Zamora and Panganiban reefs.

Tarriela characterized the encounter as a significant danger to flight safety, emphasizing the hazard posed by the PLA's actions.

The Department of Foreign Affairs reiterated Manila's legal ownership claims, asserting that Panganiban Reef is part of the Philippine Exclusive Economic Zone (EEZ) and continental shelf.

Zamora Reef is considered part of the territorial sea of Pag-asa Island, based on the 2016 South China Sea Arbitral Tribunal's classification of both features as low-tide elevations.

The Tribunal's ruling further established that island building does not generate new maritime entitlements, strengthening the Philippine position.

Despite these assertions, China continues to reject the tribunal's jurisdiction and the final award, maintaining its construction efforts.

China refers to the Spratly Islands as Nansha Qundao and considers Mischief Reef (Meiji Jiao) and Subi Reef (Subi Jiao) as inherent Chinese territory.

Beijing asserts that its construction activities on these reefs are legitimate exercises of its sovereignty.

The Philippines administers Pag-asa Island as part of the Kalayaan municipality in Palawan, solidifying its local governance over the area.

China dismisses the 2016 arbitration ruling as illegal, null, and void, characterizing it as political manipulation, despite the Philippines viewing it as the legal basis for its rights over natural resources.

Beijing continues to maintain its historic rights claims in the South China Sea (Nanhai Zhudao), even though the tribunal explicitly rejected these claims.

China has built extensive infrastructure on reclaimed reefs, including airfields, aircraft hangars, radar installations, and harbor facilities, as documented by reports and imagery.

The Philippines perceives these facilities as a persistent physical threat to its maritime jurisdiction, while Beijing claims they are situated on its own territory to defend its sovereignty.

The September flare incident demonstrates how quickly legal arguments can escalate into direct military interactions and physical confrontations.

The Philippines utilizes public disclosure and media documentation to assert its position, highlighting incidents to a global audience.

Both nations express a preference for peaceful negotiation while simultaneously defending their operational presence, leading to frequent tensions from close-range maneuvering, water cannons, and airspace interference.

A recent mission saw a collision between a China Coast Guard vessel and the Philippine Bureau of Fisheries and Aquatic Resources vessel, BRP Datu Sanday, further escalating maritime incidents.

The United States, Canada, and the European Union have expressed concern over the rising tensions in the West Philippine Sea, indicating broader international unease.

The Philippines insists its 2016 arbitral ruling is crucial for legitimate operations, contrasting with China's view of Philippine activity as an infringement on its territory, which creates a three-layered dispute involving international law, diplomacy, and physical control of the water and air.

Manila's demand for China's withdrawal from the reefs serves to reinforce its legal claim over its exclusive economic zone, rather than reflecting an immediate expectation of China's departure.

China projects sovereignty through its physical presence and artificial island infrastructure, refusing to acknowledge the 2016 arbitral ruling, which the Philippines aims to counter by preventing this long-term presence from becoming an internationally accepted de facto settlement of the maritime dispute.

President Marcos Jr. continues to assert Philippine claims despite China's superior naval and economic power, while President Xi Jinping's administration remains committed to its assertion that the Nansha Islands fall entirely under Chinese sovereignty.

Due to these fundamentally incompatible legal positions, realistic diplomacy is currently limited to crisis management and preventing dangerous encounters, leaving the region as a persistent flashpoint where both nations enforce their claims through patrols and surveillance.

The Philippines continues asserting maritime claims despite China's superior naval, coast guard, and economic power, while President Xi Jinping's government maintains that the Nansha Islands and their associated waters fall under Chinese sovereignty.

The fundamental incompatibility of these legal positions makes traditional compromise on ownership or jurisdiction unlikely, leading analysts to suggest a focus on crisis management, clear operational protocols, and preventing escalations between aircraft and vessels.

Manila demands China cease what it terms an illegal occupation of Panganiban and Zamora Reefs, while Beijing insists its construction and presence on the reefs are legitimate activities within its own territory.

The Philippines cites the 2016 UNCLOS-based arbitral ruling as its legal foundation, a ruling China entirely rejects, instead referencing its own interpretation of history and international law, with the conflict being physically enforced through daily patrols, artificial island control, and aircraft operations.

The dispute remains unsettled by Chinese infrastructure construction or Philippine diplomatic protests, indicating a persistent, multifaceted conflict.

The contest continues to operate simultaneously across international law, diplomatic forums, and physical control on the water and in the air, ensuring Panganiban and Zamora Reefs remain significant regional flashpoints until Manila and Beijing establish a framework to manage their competing realities.