Three Thai soldiers were injured by landmines on July 16, 2025, during a patrol near the Cambodian border in Ubon Ratchathani Province, prompting the Thai military to accuse Cambodia of violating international mine treaties and warn of potential military retaliation. The incident has escalated long-standing tensions between the two countries, raising regional and diplomatic concerns.
Thai officials claim the mines were newly placed on Thai soil, referencing findings by Colonel Somchok Jantasi of the Humanitarian Mine Action Unit 3, who reported eight anti-personnel mines discovered within 150 meters of the Cambodian military line. Authorities argue that the mines’ appearance, being clean and only lightly concealed with leaves, suggests recent deployment.
Military leadership has presented photographic and alleged video evidence showing a Cambodian soldier placing a TM-57 landmine near the border. Though the original footage was reportedly shared on Cambodian social media and later removed, Thai officials assert it contradicts Cambodia’s official denial.
Cambodia, in a formal communication sent on July 19, denied involvement and reaffirmed its adherence to the Ottawa Convention, which bans the use of anti-personnel mines. The Cambodian government called Thailand’s claims baseless and politically motivated.
Thailand’s Prime Minister Paetongtarn Shinawatra visited the wounded soldiers at a hospital in Ubon Ratchathani on July 18, assuring them of government support and compensation. She emphasized the importance of continuing mine clearance operations and urged efforts to prevent further escalation.
Lieutenant General Boonsin Padklang of the 2nd Army Region announced that retaliatory military action was being considered and would not require central government approval. He estimated hundreds of mines may still be hidden along the contested border. General Pana Klaewplodtook also described the evidence as sufficient grounds for both diplomatic and military responses.
Thailand plans to submit a complaint to the United Nations, citing Cambodia’s alleged violation of the mine ban treaty. The dispute touches on contested areas such as Prasat Ta Muean Thom, where Cambodia does not recognize Thai sovereignty, further complicating resolution efforts.
Tensions had already intensified after a brief armed exchange near Chong Bok resulted in the death of a Cambodian soldier. Relations worsened following the release of a private audio clip between Hun Sen and Paetongtarn concerning border checkpoint negotiations.
