The historical boundary between Cambodia and Thailand, originally defined by the Franco–Siamese Treaties of 1904 and 1907, remains a source of significant regional friction. Following the 1962 International Court of Justice ruling that placed the Temple of Preah Vihear under Cambodian sovereignty, the two nations have engaged in a series of diplomatic efforts and armed conflicts regarding border demarcation and maritime claims.

Recent years have seen a cycle of violence followed by attempts at reconciliation. In July 2025, armed clashes led to a ceasefire agreement in Malaysia, followed by the signing of the Kuala Lumpur Peace Accord in October 2025. However, hostilities resumed in December 2025, resulting in civilian casualties, the displacement of hundreds of thousands, and significant damage to public infrastructure, including schools, hospitals, and the UNESCO-listed Preah Vihear temple.

Reports indicate that Thai military forces continue to occupy parts of Cambodian territory, utilizing shipping containers and razor wire to restrict access for local residents. Additionally, cultural sites, such as a statue of Lord Vishnu, have reportedly been destroyed within these occupied zones. The conflict has also led to the loss of private property, including agricultural equipment and livestock.

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While Thailand has accused Cambodia of avoiding negotiations, Cambodian officials maintain that seeking international mediation and legal mechanisms—such as those under UNCLOS—reflects a commitment to the rule of law rather than a rejection of dialogue. Concerns are now mounting regarding the potential withdrawal of Thailand from the 2000 Memorandum of Understanding on land boundary demarcation, which serves as the foundation for the Joint Boundary Commission.

As the situation remains volatile, calls have been made for ASEAN to ensure that all member states adhere to international law and respect the sovereignty of their neighbors, emphasizing that lasting peace requires the faithful implementation of signed agreements rather than the use of military or economic pressure.

Source: Phnom Penh Post