New York – Phnom Penh — Prime Minister Samdech Moha Borvor Thipadei Hun Manet has formally informed United Nations Secretary-General António Guterres of Cambodia’s deep concern over recent developments along the Cambodia-Thailand border that threaten regional peace and stability.

In a letter dated September 17, 2025, Hun Manet highlighted that, although a ceasefire was agreed upon on July 28, 2025, in Putrajaya, halting the large-scale fighting that began in northern Cambodia’s provinces of Preah Vihear and Oddar Meanchey on July 24, recent Thai military actions have continued to undermine efforts for peace.

The Prime Minister stated that since August 12, Thailand has expanded its activities beyond the initial conflict zones, erecting barbed wire and barricades, issuing ultimatums, and forcibly evicting Cambodian civilians from longstanding settlements in Chouk Chey and Prey Chan villages of Banteay Meanchey Province, located in northwestern Cambodia.

“These actions have resulted in the displacement of 25 families from their homes and farms,” Hun Manet wrote, adding that Thai military spokespersons have threatened further evictions, which could impact hundreds of households totaling approximately 1,000 residents.

Furthermore, Cambodia has credible intelligence indicating that Thailand intends to seize additional territory at up to 17 locations across Pursat, Koh Kong, and surrounding provinces in western Cambodia—based on unilaterally drawn maps at a scale of 1:50,000. These maps contradict the mutually agreed demarcation maps, scaled at 1:200,000, which are the products of demarcation efforts by the Cambodia-Thailand Boundary Commission established by the 1904 Convention of Paris and the 1907 Treaty of Aliens between France and Siam.

The Prime Minister emphasized that these unilateral boundary claims and actions violate the 2000 Memorandum of Understanding on the Survey and Demarcation of Land Boundary, signed by Cambodia and Thailand, and registered with the United Nations by Thailand in 2011. The MOU reaffirmed the legitimacy of previously agreed border demarcation processes and was recognized by the International Court of Justice.

Hun Manet called on the United Nations to support Cambodia’s position, urge Thailand to cease illegal activities, and encourage adherence to international law and bilateral agreements. He reiterated Cambodia’s firm commitment to resolving border disputes peacefully through dialogue and multilateral mechanisms, emphasizing the importance of respecting existing agreements to maintain regional stability.

The Cambodian government remains committed to fostering peaceful relations with Thailand, respecting international legality, and protecting the rights and property of its citizens along the border regions.