United States President Donald Trump will conclude the Thailand-Cambodia peace process by signing the final agreement in Malaysia during the 47th ASEAN summit. The president has described himself as the proud broker of this “great peace deal” between two Southeast Asian nations with a long history of territorial disputes.
The peace process began after violent border clashes erupted in July 2025 between Thai and Cambodian forces along their contested frontier. The five-day military confrontation resulted in casualties on both sides and created a displacement crisis as thousands of civilians fled the violence, demonstrating the urgent need for international mediation to prevent further bloodshed.
Malaysia played a crucial mediating role and successfully negotiated a ceasefire that was implemented in late July 2025. The Malaysian government has maintained its peacekeeping efforts by coordinating ASEAN observer missions that continue to monitor the truce and ensure both Thailand and Cambodia comply with the terms of the cessation of hostilities.
President Trump announced via Truth Social while aboard Air Force One that the final signing would occur immediately upon his arrival in Malaysia. This expedited schedule is designed to accommodate the large number of international leaders attending this historic event, including Malaysian Prime Minister Anwar Ibrahim and other ASEAN leaders. Trump also expressed condolences for the death of Thailand’s Queen Mother and confirmed he would meet with Thailand’s Prime Minister upon landing.
The final agreement addresses a territorial dispute spanning more than 800 kilometers of shared border between Cambodia and Thailand, including multiple non-demarcated areas. Recent diplomatic progress includes agreements reached during an October meeting of the Joint Commission in Chanthaburi, Thailand, where both nations committed to advancing boundary demarcation efforts. Thailand’s Foreign Minister Sihasak Phuangketkeow has stated that both countries are close to finalizing a Declaration of Thailand-Cambodia Relations designed to comprehensively resolve the border situation. The dispute has historically centered on ancient Hindu temple sites in the Dangrek Mountains, with previous violence in 2011 near Preah Vihear temple resulting in at least 16 deaths.