ASEAN Pushes for South China Sea Code, Myanmar Peace as Regional Tensions Mount

Southeast Asian leaders gathered in Laos last week with a clear message: the region's most volatile disputes need binding agreements, and they need them soon. The consensus that emerged from meetings involving all ten ASEAN members, plus diplomats from the United States, Russia, China, Japan, India, and South Korea, centered on two urgent crises—one maritime, one humanitarian—that threaten to destabilize one of the world's most economically vital regions.

The South China Sea remains the sharper flashpoint. China claims sovereignty over nearly the entire waterway, a position that puts it in direct confrontation with several ASEAN members, most visibly the Philippines and Vietnam. These confrontations have been intensifying, and the stakes are not abstract. Three trillion dollars in annual trade flows through those waters. The United States, bound by treaty to defend the Philippines if attacked, sits at the edge of this dispute, creating a scenario where regional tensions could pull in a superpower.

ASEAN's statement called for a code of conduct based on international law—specifically referencing the 1982 U.N. Convention on the Law of the Sea. That reference itself became a point of friction at the meetings, with Russia and China objecting to its inclusion. The bloc has been pursuing this code since 2002, when China and ASEAN first agreed to the concept. But the actual work of drafting did not begin until 2017, meaning seven years have passed with little to show. The statement expressed hope for "positive momentum" and called for confidence-building measures that might reduce the risk of accidents, misunderstandings, and miscalculation—diplomatic language for the fear that a minor incident could spiral into something far worse.

Myanmar's crisis looms equally large, though it operates in a different register. The country's military government has been locked in a widening war with armed resistance forces since the 2021 coup. ASEAN, which counts Myanmar as a member, has made almost no headway on a five-point peace plan it unveiled in the months after the coup. The bloc's statement demanded an immediate halt to the violence and called for inclusive national dialogue that is "Myanmar-owned and -led"—a careful formulation that respects Myanmar's sovereignty while pressing for civilian participation in any settlement.

The human toll is staggering. More than 18.6 million people in Myanmar—more than a third of the country's population—are estimated to need humanitarian assistance. That figure encompasses the displaced, the hungry, the sick, and those cut off from basic services by the fighting. ASEAN welcomed Thailand's initiative to host informal talks on Myanmar later in the year, possibly joined by other member states, as a potential opening.

What emerges from these meetings is a picture of a region trying to manage crises on multiple fronts with limited leverage. ASEAN has no enforcement mechanism. It cannot compel China to accept a maritime code or force Myanmar's military to the negotiating table. What it can do is build consensus among its members and the major powers watching the region, create forums for dialogue, and keep the pressure on. Whether that proves sufficient depends on whether the parties involved see more to gain from agreement than from the status quo—a calculation that remains deeply uncertain.