The Royal Thai Army on 22 July 2025 invited foreign military attachés to Thailand for a briefing on the recent landmine incident along the Thai-Cambodian border near the Chong Bok area, Ubon Ratchathani Province, resulting in injuries to three Thai soldiers.

The incident took place on 16 July 2025. The Royal Thai Army confirmed that new, active PMN2 anti-personnel landmines had been discovered in the area, and that they were a type of anti-personnel mine not employed or stockpiled by Thailand.

Additional new anti-personnel mines were found on 20 July at two spots near the border, where the three Thai soldiers had been injured from the explosion of a landmine on 16 July while conducting a routine patrol within Thai territory. 

The landmines were then defused and removed. They were confirmed to breach the Anti-Personnel Mine Ban Convention, to which both Thailand and Cambodia are signatories. The Thai government will submit the issue to the upcoming meeting of the Anti-Personnel Mine Ban Convention, as this is a clear violation of the obligations under this convention.

The Anti-Personnel Mine Ban Convention, also referred to as the Ottawa Convention, is an international agreement that prohibits the use, stockpiling, production, and transfer of anti-personnel landmines.

Thailand will also issue a formal written protest to Cambodia over the incident and the use of anti-personnel mines. It stressed efforts to resolve the Thai-Cambodian border situation through existing bilateral mechanisms, namely the Joint Boundary Commission (JBC), the General Border Committee (GBC), and the Regional Border Committee (RBC).