Background
The Ministry of National Defence coordinated a field visit by the ASEAN Observer Team in Cambodia (AOT-KH) to the Boeung Trakoun checkpoint area in Banteay Meanchey Province following a local ceasefire and reported incidents of illegal occupation. The Cambodia–Thailand Joint Boundary Commission (JBC) is the bilateral mechanism mandated to carry out technical demarcation work along the land boundary between Cambodia and Thailand.
The AOT-KH visit was coordinated through the Cambodian Liaison Group (CLG) to observe, verify, and report on the site-specific situation at Kouk Romiet commune. The ASEAN Observer Team in Cambodia (AOT-KH) conducts field observation, verification, and reporting on border situations when coordinated by Cambodian authorities.
Key Developments
On 4 August 2026 at 10:00 a.m., the CLG escorted the AOT-KH delegation, led by the Head of Mission from the Philippines, to the Boeung Trakoun border checkpoint in Tmor Pouk district for on-site observation and reporting. The Ministry of National Defence reported that 1,870 families (8,790 individuals), including 1,980 children, remained displaced and unable to return home because of an alleged illegal occupation of Cambodian territory by Thai military forces at the location, including deployment of barbed wire, shipping containers, and damage to civilian houses.
The Ministry invoked point four of the Joint Statement from the 3rd Special Meeting of the Cambodia–Thailand General Border Committee (GBC) on 27 December 2025, calling for prompt JBC demarcation work to enable safe and unimpeded civilian return.
Institutional Role
The Ministry of National Defence acts as the public communicator for military and coordination activities at the border and uses the Cambodian Liaison Group (CLG) to coordinate external observers. The statement references historical delimitation sources—including Franco–Siamese conventions, the Indochina–Siam delimitation records, the MOU 2000 and TOR 2003—as the basis for Cambodia’s official position on the boundary.
Operational Implications
The Ministry framed immediate operational priorities around initiating technical demarcation by the JBC to restore territory control and enable displaced civilians to return with safety and dignity in accordance with existing bilateral accords. The Ministry also said Cambodia will continue to lodge formal protests against any unilateral attempts to alter boundary lines through the establishment of faits accomplis on the ground.
