Cambodia, Thailand to Resume Border Demarcation Talks in January

PHNOM PENH, Cambodia (Dec. 29, 2025) — Cambodia and Thailand will resume formal border demarcation negotiations in early January as both countries move to consolidate peace following a recent ceasefire and advance long-delayed technical work on their shared land boundary.

The State Secretariat of Border Affairs said the Cambodia–Thailand Joint Commission on Demarcation for Land Boundary (JBC) will convene an urgent special meeting in Siem Reap during the first week of January to continue survey and demarcation work along key segments.

The meeting follows agreements reached under the Joint Declaration of the 3rd Special Meeting of the General Border Committee on Dec. 27 and earlier JBC minutes signed Oct. 22 in Chanthaburi, Thailand.

According to the SSBA, both sides will resume survey operations and place temporary boundary markers in sensitive areas of Banteay Meanchey, Battambang and Pursat provinces, including segments between Boundary Pillars 42–47, 52–59 and 33–37. Joint survey teams will also continue demarcation in line with agreed technical frameworks.

Cambodia reaffirmed its position that the international boundary is grounded in international law, Franco-Siamese treaties and the principle of Uti Possidetis Juris, stressing that any alteration through force will not be recognized.

The SSBA said the renewed JBC engagement aims to ensure lasting peace, territorial integrity and long-term stability, urging the public to maintain confidence in the government’s professionalism and commitment to safeguarding national sovereignty.