NEW YORK – Thai Permanent Representative to the United Nations in New York sends letter to the President of the UN Security Council regarding Cambodia’s violation of Thai sovereignty and widespread indiscriminate attacks, forcing over 400,000 residents to evacuate.
In a letter dated December 9, 2025, Thailand’s Permanent Representative Cherdchai Chaivaivid detailed the alleged “grave violation of the sovereignty and territorial integrity of the Kingdom of Thailand”. The letter was addressed to the President of the U.N. Security Council, Ambassador Samuel Žbogar of the Republic of Slovenia, and requested that the communication be circulated to all Council members for urgent attention as an official document.
The letter outlines specific incidents, beginning on December 7, 2025, when Cambodian forces allegedly opened fire on Thai troops conducting route maintenance in the Phu Pha Lek – Phlan Hin Paet Kon area of Si Saket Province , immediately injuring two soldiers. Hostilities escalated on December 8, 2025, with an unprovoked attack on a Thai military base in Ubon Ratchathani , followed by “widespread and indiscriminate assaults” across five provinces: Buriram, Surin, Si Saket, Ubon Ratchathani, and Sa Kaeo. These operations reportedly employed heavy weaponry, including multiple rocket launchers, mortars, and heavy machine guns. As a result of these aggressions, Thailand reported 1 death and 18 injuries among military personnel, and over 400,000 residents were forced to flee their homes, two of whom died from heart attacks during evacuation.
Thailand emphasized that Cambodia’s actions constituted a clear violation of Article 2(4) of the Charter of the United Nations. Thailand stated it was compelled to exercise its inherent right of self-defence under Article 51 of the Charter to defend its sovereignty and protect its people, stressing that its measures are limited, proportionate, and in strict compliance with international law. The Permanent Mission categorically rejected Cambodia’s “false narratives” accusing Thailand of initiating the attacks. Thailand demanded that Cambodia provide a full explanation and accept full responsibility, urging the international community to call upon Cambodia to cease all hostile acts and to comply with its obligations under international law and the U.N. Charter. (TNA)
