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Cambodia Says Thai Move to Cancel MOU Violates International Law

Terry Felix​​​​   On March 26, 2026 - 1:14 am​   In Asia Pacific   1mn Read
Cambodia Says Thai Move to Cancel MOU Violates International Law Cambodia Says Thai Move to Cancel MOU Violates International Law

PHNOM PENH, March 26, 2026 — Cambodia has rejected calls by a Thai Senate panel to revoke a long-standing border agreement, warning that such a move would violate international law and undermine efforts to maintain peace along the border.

In a statement, the State Secretariat of Border Affairs said it “firmly rejects and entirely dismisses” recommendations to cancel the 2000 Memorandum of Understanding (MOU 43), describing them as unfounded and politically motivated.

The MOU, signed by both countries and registered with the United Nations, serves as a legal framework for resolving border issues through the Joint Boundary Commission (JBC).

Cambodia said Thailand cannot unilaterally revoke the agreement under international law, citing the Vienna Convention on the Law of Treaties.

Officials added that the JBC has made progress in demarcation work, including identifying boundary pillars and conducting joint surveys.

Phnom Penh reaffirmed its commitment to resolving disputes peacefully and warned that revoking the agreement would hinder stability and cooperation along the border.

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