
Thai Prime Minister Anutin Charnvirakul’s recent election victory could spell trouble for Thailand-Cambodia relations. His electoral success and subsequent policy statement proposing Thailand’s withdrawal from the 2001 Memorandum of Understanding (MOU 44) — a framework for bilateral negotiations over disputed maritime areas between Thailand and Cambodia — represent a deep contradiction for Thailand: the use of cheap nationalism may advance elite interests at the expense of Thai national interests.
Cambodia and Thailand share a long land and sea border, much of which is disputed. The maritime dispute dates back to 1972, when Cambodian Prime Minister Lon Nol issued two presidential decrees using the Thai island of Koh Kut as the reference point for Cambodia’s territorial claims in the Gulf of Thailand. This Overlapping Claims Area (OCA) comprises some 27,000 square kilometres of maritime territory. On the one hand, it is estimated to contain natural gas reserves of around 311 billion cubic metres, as well as sizeable oil reserves. On the other hand, questions of territory inevitably fall within the bounds of sovereignty — one of the most sensitive issues for Southeast Asian countries. The future viability of MOU 44 has now come into question, re-intensifying territorial tensions between the two countries.
Filling the void: MOU 44
Signed by Cambodia and Thailand in June 2001, MOU 44 reflected two primary points of interest. First, it marked a triumph of diplomacy between the two Southeast Asian countries. As the second in a pair of boundary agreements — following MOU 43 (2000), which focused on land borders — MOU 44 addressed maritime territory and provided a framework for bilateral negotiations. At the time, neither country had yet become a signatory of the United Nations Convention on the Law of the Sea (UNCLOS), leaving no prior framework for conflict resolution. Together, the twin MOUs represented a ‘golden age’ of cooperation between the two countries, when mutually beneficial outcomes were the primary philosophy guiding their relations.






