Marcos Defies China's Demand to Remove BRP Sierra Madre

Ayungin Shoal, known internationally as Second Thomas Shoal and by China as Ren'ai Jiao, has become a recurring flashpoint in confrontations between Manila and Beijing. At the heart of this dispute is the BRP Sierra Madre, a Philippine landing ship intentionally grounded in 1999, which serves as a functioning military outpost.

This deliberate grounding was a strategic move by the Philippines to assert its territorial claims in the region, ensuring a continuous presence on the feature. The vessel's dilapidated state belies its critical role in maintaining the Philippines' claims, making it a constant source of friction with China.

China renewed its demand for the removal of the BRP Sierra Madre on August 27, 2026, with Senior Colonel Zhang Xiaogang issuing a strong statement. Beijing classifies the area as part of Nansha Qundao, or the Spratly Islands, and views the grounded ship as an illegal occupation.

In its demand, China explicitly prohibited the construction of any permanent facilities or the introduction of construction materials to the BRP Sierra Madre, asserting that the Philippines' actions are provocative. This reiterates China's long-standing position that the vessel's presence violates its sovereignty and maritime claims.

Manila asserts that Ayungin Shoal falls within its exclusive economic zone and continental shelf, where the Philippines possesses sovereign rights and jurisdiction under international law. This position is firmly anchored in the United Nations Convention on the Law of the Sea (UNCLOS) and the 2016 Arbitral Award.

The international tribunal, in its 2016 ruling, classified the feature as a low-tide elevation, confirming that the surrounding waters are within the Philippine Exclusive Economic Zone. This legal framework provides the Philippines with a strong international basis for its presence and activities in the disputed area.

The National Maritime Council of the Philippines responded on September 1, 2026, firmly rejecting China's demands and reaffirming its commitment to the 2016 arbitral award. The council's statement underscored that the presence of the BRP Sierra Madre does not grant China any authority to dictate Philippine activities at Ayungin Shoal.

This unequivocal rejection highlights Manila's resolve to uphold its sovereign rights and jurisdiction, dismissing Beijing's claims as unfounded. The Philippine government considers any attempt by China to control its activities in the area as an infringement on its internationally recognized entitlements.

A July 2024 agreement, intended to reduce miscalculation between the two nations, is subject to diverging interpretations. Philippine officials, including Ma Theresa Lazaro, have clarified that this mechanism is solely for information exchange and does not constitute a process of seeking permission from China.

Manila emphasizes that China possesses no veto power over Philippine resupply missions or other activities within its exclusive economic zone. This clarification aims to prevent any misinterpretation of the agreement as an acknowledgement of Chinese jurisdiction over Ayungin Shoal, maintaining the Philippines' sovereign stance.

This success continued, with 16 missions completed by September 3, 2026.

The successful execution of these operations demonstrates the Philippines' ability to maintain its outpost at Ayungin Shoal, despite ongoing tensions with China. The mechanism appears to have, at least temporarily, facilitated a degree of operational predictability and reduced immediate confrontations during these critical missions.

The BRP Sierra Madre faces severe damage from extreme saltwater corrosion and persistent tropical weather, making its maintenance a constant challenge. Any substantial reinforcement of the ship, however, carries significant geopolitical risks.

China views efforts to reinforce the Sierra Madre as an attempt to transform a deteriorating grounded ship into a more permanent Philippine installation, which it vehemently opposes. This dilemma means that while the ship urgently needs repairs, any significant work risks further escalating tensions with Beijing, which could interpret it as a violation of their demands.

A violent incident occurred on July 20, 2026, during which a Chinese Coast Guard member reportedly struck a Philippine Navy sailor on the head with a wooden baton. This assault resulted in an injury to the Philippine sailor and damage to a Philippine rubber boat.

This confrontation represents a significant escalation in the ongoing dispute, moving beyond mere harassment to direct physical violence. Such incidents raise serious concerns about the safety of personnel involved in the resupply missions and the potential for minor clashes to spiral out of control.

Each government typically presents a fundamentally different description of how these confrontations begin and evolve.

For instance, China accused Philippine personnel of using oars and sticks in an altercation and lodged a formal protest with the Philippine ambassador. In contrast, the Philippine military rejected China's version as false and misleading, highlighting the deep mistrust and propaganda warfare surrounding these incidents. This divergence in narratives complicates efforts to de-escalate tensions and accurately assess responsibility.

During this confrontation, seven rifles were reportedly taken by Chinese personnel.

Following the incident, the Philippines sought approximately PHP 60 million in compensation for damages and injuries. This clash ultimately led to the establishment of the provisional arrangement for resupply missions, underscoring the severity of the event and the need for mechanisms to prevent further harm.

The Philippines has vehemently denied China's assertion of an alleged promise to remove the BRP Sierra Madre. Retired Rear Admiral Roy Vincent Trinidad, AFP spokesperson for the West Philippine Sea, stated unequivocally that no binding commitment had ever been made to abandon the vessel.

Trinidad accused Beijing of attempting to rewrite history surrounding the Philippine outpost, reiterating that the Philippine military would not abandon its position. This denial directly counters China's narrative and reinforces Manila's steadfast commitment to maintaining its presence at Ayungin Shoal.

has maintained an unwavering policy of defending the Philippines' maritime rights while simultaneously keeping diplomatic channels open with China. In his 2022 state of the nation address and consistently through 2026, Marcos has vowed not to abandon even one square inch of Philippine territory.

This firm territorial stance underscores his commitment to national sovereignty and sends a clear message to Beijing that the Philippines will not concede its claims. Marcos's leadership emphasizes both resolute defense and strategic engagement to navigate the complex geopolitical landscape of the South China Sea.

While not every collision automatically triggers American military action, the severity and circumstances of an incident are critical.

Serious casualties or an escalation into an armed attack could potentially broaden the bilateral conflict into a wider regional confrontation involving the United States. This alliance provides the Philippines with a crucial security guarantee but also raises the stakes for any direct military engagement in the disputed waters, turning local incidents into potential international flashpoints.

The BRP Sierra Madre holds profound strategic importance for both Manila and Beijing, embodying their conflicting claims and aspirations in the South China Sea. For Manila, it represents a continuing Philippine presence at a feature lying within waters where the 2016 tribunal recognized Philippine maritime entitlements.

Conversely, for Beijing, the grounded ship symbolizes a Philippine position that China insists should never have become permanent, viewing it as an encroachment on its sovereign territory. Despite ongoing diplomatic talks, neither side shows any willingness to concede its position, leading to a precarious standoff where even minor encounters risk spiraling into significant crises, threatening regional security.