A fragile calm currently exists along the land border between Cambodia and Thailand, but tensions have flared over a maritime dispute in the Gulf of Thailand. This dispute was recently brought to the attention of a regional mediation process held in Singapore, at the office of the Permanent Court of Arbitration, on September 15 and 16. The dispute involves the delimitation of approximately 26,000 square kilometers of maritime territory, an area that both countries claim as their own. The significance of the issue is heightened by the potential presence of substantial oil and natural gas reserves in the region. Thai authorities estimate these resources could be worth over 260 billion euros, adding economic stakes to the territorial disagreement. Maritime boundary disputes are often complex, requiring careful legal and geographical analysis. In this case, the disagreement has led to heightened diplomatic exchanges, with both sides presenting their claims before the arbitration panel. The discussions in Singapore began with a high level of intensity, reflecting the sensitivity of the issue for both nations. The Thai foreign minister, Sihasak Phuangketkeow, accused Cambodia of making "selfish and hypocritical" claims, arguing that Cambodia has been spreading "false narratives" to undermine Thailand instead of engaging in direct bilateral talks. Phuangketkeow emphasized the need for Cambodia to address the dispute through dialogue rather than what he described as misleading public discourse. He accused Cambodia of playing a role that he implied was not in line with peaceful resolution. The comments underscore the diplomatic strain between the two countries, despite their efforts to maintain a stable relationship on land. The outcome of the mediation process in Singapore could have significant implications for regional stability and resource management in the Gulf of Thailand. The situation highlights the broader challenges of maritime boundary disputes in Southeast Asia, where overlapping claims and resource potential often lead to complex negotiations. While the land border between Cambodia and Thailand remains relatively stable, the unresolved maritime issue continues to test the diplomatic relations between the two nations. The mediation process offers a chance for both countries to seek a peaceful resolution, though the path forward remains uncertain.