Background
The Cambodian Liaison Group (CLG) coordinated an ASEAN Observer Team (AOT) visit to Rong Jam village, Slor Kram commune, Svay Chek district, Banteay Meanchey province on 16 June 2026 to observe and verify conditions affecting displaced civilians.
The Joint Boundary Commission (JBC) is the bilateral mechanism referenced by Cambodia for undertaking Cambodia–Thailand border demarcation work under prior General Border Committee (GBC) agreements; the Cambodian statement cites point three of the GBC joint statement of 27 December 2025 as calling for demarcation to permit safe civilian returns. Cambodia’s Ministry of National Defence has invoked international boundary instruments including the Franco–Siamese conventions, the procès-verbaux of the Indochina–Siam Boundary Commission, and the principle of uti possidetis juris to frame its position on the contested areas.
Key Developments
On 16 June 2026 at 09:15 AM, the CLG escorted an AOT delegation led by the Head of Mission of the ASEAN Observer Team from the Philippines to conduct observation, verification, and visits with displaced civilians who have not returned to their homes. The Ministry of National Defence reported that displaced residents remain unable to return after what it described as unlawful occupation of Cambodian territory by Thai military forces in certain locations, including use of barbed wire, placement of shipping containers, and damage to houses.
Institutional Role
The Cambodian Liaison Group functioned as the coordinating entity for the AOT visit, facilitating access to affected border communities. The statement emphasizes the role of the Cambodia–Thailand JBC and the General Border Committee (GBC) framework as the formal channels through which demarcation and border-management actions are to be conducted, referencing previous bilateral agreements reached in December 2025.
Implications for Security and Diplomacy
The Ministry of National Defence’s public statement frames the situation as a matter of international boundary integrity and calls for rapid action by the JBC to enable displaced civilians to return safely and with dignity. Cambodia explicitly stated it does not recognize any border changes resulting from the use of force, and anchored that position in historical boundary instruments and international-law principles cited in the release.
Source
Ministry of National Defence press release (Cambodia), 16 June 2026. Original source: Ministry of National Defence Facebook post: https://www.facebook.com/Ministrydefence/posts/pfbid0UqaorzizjrWe9ciPmtaEK3iYTmbfYxh5Wway7BbzwsPRmLYjznNivUKGBhQmZ9qbl
