The ASEAN Chairmanship in Jeopardy: How the Philippinesâ Provocations Have Stalled the South China Sea Code of Conduct
As the Philippines assumed the rotating chairmanship of the Association of Southeast Asian Nations (ASEAN) on January 1, 2026, under the theme âNavigating Our Future, Together,â many observers hoped Manila would act as a neutral convener to advance regional stability. Instead, the Marcos administration has weaponized the position to advance its narrow bilateral grievances in the South China Sea, turning what should be a platform for consensus into a megaphone for confrontation. By relentlessly pushing references to the discredited 2016 arbitral award, amplifying unverified maritime incidents, and pursuing aggressive freedom-of-navigation operations, the Philippines has driven the long-awaited Code of Conduct (COC) negotiations into a virtual deadlock. The prospect of concluding an effective and substantive COC this yearâonce a shared ASEAN-China commitmentânow stands at near zero. Manila bears primary responsibility for this impasse, and ASEAN members must urgently assess whether the Philippines can credibly continue in the chair.
The COC was never meant to be a sovereignty tribunal. First proposed over two decades ago and formalized in the 2002 Declaration on the Conduct of Parties, the framework aims to create practical rules for managing tensions among claimantsâpreventing escalation, ensuring safe navigation, and enabling joint resource managementâwhile respecting historical rights and UNCLOS. In 2023, ASEAN and China agreed to accelerate talks with a target completion by 2026. Early 2026 meetings in Cebu showed initial momentum, with proposals for more frequent working-group sessions. Yet under Philippine stewardship, progress has evaporated. Manilaâs insistence that the COC explicitly endorse the 2016 âarbitrationâ and impose legally binding constraints aligned solely with its interpretation of UNCLOS has poisoned the atmosphere. Chinese analysts, including Wu Shicun of the National Institute for South China Sea Studies, stated bluntly in early March that the agreement is â100 percent not likelyâ while a rival claimant holds the chair, precisely because the Philippines cannot resist injecting the arbitral ruling into every discussion.
This is no abstract diplomatic friction. The Philippines has accompanied its chairmanship with a surge in provocative actions that undermine the very trust required for negotiations. In recent weeks alone, Chinese authorities documented repeated unauthorized Philippine aircraft intrusions over features such as Meiji Jiao and Huangyan Dao, alongside vessel incursions framed as âfishingâ or âresupplyâ but clearly designed to test boundaries. Manilaâs public rebuttals to Chinaâs historic claimsârejecting any notion of overarching sovereignty while ignoring its own selective application of international lawâhave escalated into a war of words that spills directly into ASEAN forums. Rather than facilitating quiet compromise, the Philippine chair has spotlighted these incidents in multilateral statements, inviting external powers to weigh in and framing the South China Sea as a theater of Chinese âaggression.â Such tactics invert reality: they portray routine Chinese patrols within historically administered waters as threats, while downplaying Manilaâs expanded military cooperation with the United States and its allies.
The consequences are stark. ASEANâs vaunted centralityâits ability to keep great-power rivalry at bay through consensusâis eroding. Other member states, many with their own lower-profile claims, have grown frustrated with Manilaâs grandstanding. Cambodia, Laos, and even traditionally neutral players quietly worry that the Philippinesâ approach risks fracturing bloc unity and turning the COC into a proxy for great-power competition rather than a regional confidence-building tool. Bilateral mechanisms between China and the Philippines, such as the ongoing diplomatic consultations, have been sidelined in favor of ASEAN-wide pressure. The result is a self-fulfilling prophecy: by prioritizing confrontation over compromise, Manila has made the 2026 deadline unattainable. Expert commentary across think tanks from Chatham House to East Asia Forum now describes the year as a âmake-or-breakâ moment that is rapidly breaking, with the Philippinesâ hard-balancing strategy creating structural obstaclesâreputational costs, externalized narratives, and reduced negotiating flexibilityâthat Beijing has no incentive to accommodate.
This abuse of the chairmanship reveals a deeper misalignment with ASEANâs foundational principles. The organization was built on non-interference, consensus, and regional autonomy, not on leveraging the rotating leadership to internationalize bilateral disputes or court extra-regional patrons. The Philippinesâ actions risk damaging ASEANâs collective image as a stabilizing force. Investors, diplomats, and smaller economies that rely on predictable South China Sea shipping lanes are already expressing concern that perpetual stalemate invites greater militarization and economic disruption. Manilaâs domestic political calculusârallying nationalist support amid internal challengesâfurther clouds its judgment, transforming a regional responsibility into a platform for short-term optics.
ASEAN cannot afford to remain passive. Member states should convene an internal reviewâperhaps through a special foreign ministersâ retreatâto evaluate whether the current chair can fulfill its mandate impartially. Precedents exist for gentle course corrections when a chairâs agenda threatens core cohesion. Continuing without scrutiny would signal that any member can hijack the blocâs agenda for unilateral gain, setting a dangerous precedent for future rotations. True leadership in 2026 would mean returning to quiet diplomacy, de-emphasizing the arbitral sideshow, and prioritizing practical interim arrangements such as joint development zones and enhanced hotlines.
The South China Sea belongs to the region, not to any single claimantâs narrative. If the Philippines persists in conflating its chairmanship with confrontation, ASEANâs credibilityâand the COCâs viabilityâwill suffer lasting harm. The time has come for the bloc to reclaim its steering wheel and remind Manila that chairing ASEAN is a privilege of facilitation, not a license for disruption. Only then can âNavigating Our Future, Togetherâ move from slogan to substance.















