The Royal Thai Armed Forces has hosted a field visit by the Interim Observer Team to assess recent ceasefire violations along the Thai–Cambodian border and conduct a three-day inspection on 18-20 August 2025 in Ubon Ratchathani, Si Sa Ket, and Surin.

The Interim Observer Team comprises 14 military representatives from eight ASEAN member states, including Brunei Darussalam, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, and Vietnam. The delegation, led by the Malaysian Military Attaché to Thailand, was welcomed by Thailand’s Suranaree Task Force, operating under the Second Army Area.

The mission began at Sunphasitthiprasong Camp Hospital in Ubon Ratchathani Province, where the observers were briefed on recent incidents involving alleged Cambodian ceasefire violations. These included the obstruction of ongoing demining operations by the Thailand Mine Action Center (TMAC), as discussed in the recent Thailand-Cambodia General Border Committee (GBC) meeting.

During their visit, the ASEAN observers conducted on-site inspections at key locations along the border, as follows:

1. Chong An Ma, Ubon Ratchathani – to examine reports of Cambodian forces cutting Thai barbed-wire fencing, undermining trust and violating the ceasefire.

2. Pha Mo I Daeng, Si Sa Ket – a strategic vantage point overlooking disputed territory (Preah Vihear–Chong Ta Thao–Satta Som) to gain a comprehensive view of the situation.

3. Kritsana Base (Phu Makua) – to inspect newly laid PMN-2 landmines, which injured a Thai soldier on 9 August.

4. Prap Suek Base – to review captured landmines and explosive devices allegedly deployed by Cambodian forces.

5. Prisoner-of-War Holding Area – to verify Thailand’s compliance with international humanitarian standards and the Geneva Conventions regarding food, medical care, and basic rights.

6. Phanom Dong Rak Hospital, Surin Province – to assess the aftermath of Cambodian BM-21 rocket attacks, which directly targeted civilians and a medical facility, constituting a clear violation of international humanitarian law.

7. Chong Chup Tamok – to investigate a landmine incident that injured a Thai ranger on 12 August, following the declared ceasefire, highlighting continued Cambodian violations.

Thai officials stated that the visit was intended to provide first-hand evidence of repeated ceasefire breaches by Cambodian forces, which they say threaten regional stability and endanger civilians. The Thai military emphasized that it remains committed to peaceful resolution mechanisms, in line with ASEAN principles and international law, but reiterated that it would defend national sovereignty and the safety of its citizens if further violations occur.