South China Sea Arbitration: Why a Decade-Old Ruling Hasn't Resolved Disputes

A decade after the South China Sea arbitration ruling, its impact and the persistent disputes in the region remain a significant topic. The ruling, initiated by the Philippines against China, aimed to clarify maritime claims and de-escalate tensions. However, its implementation and acceptance have been highly contentious, particularly due to China's non-recognition of the award. The arbitral tribunal, constituted under the United Nations Convention on the Law of the Sea (UNCLOS), declared that China had no historic rights within the nine-dash line. It also ruled that certain features in the Spratly Islands were rocks and not islands, thus not entitled to an exclusive economic zone (EEZ). Despite the ruling, China has continued its assertive actions in the South China Sea, including island-building and military deployments. Other claimant states, such as Vietnam, Malaysia, and Brunei, have also continued to assert their claims, leading to ongoing friction. The ruling has, in some ways, provided a legal basis for countries challenging China's expansive claims, but it has not fundamentally altered the geopolitical dynamics or the physical realities on the ground. The controversy highlights the limitations of international arbitration when faced with a major power's non-compliance and the complex interplay of sovereignty, resources, and strategic interests in the region.