Thailand’s proposed border referendum would ask voters whether to keep or reject two agreements with Cambodia, as border tensions and a July 2025 flare-up keep the issue high on the national agenda. The debate now mixes domestic politics, legal uncertainty and regional security.
Thailand is preparing to put a border referendum before voters after Prime Minister Anutin Charnvirakul said his government will propose one on two agreements that guide the frontier with Cambodia. The move comes after renewed clashes on the border and a sharper public debate inside Thailand.
A border dispute with a long history
The land border between Thailand and Cambodia stretches 817 kilometres and has been contested for decades. Unmarked areas on maps have repeatedly created tension, and in July 2025 the border saw its heaviest fighting in more than a decade.
The five-day conflict killed at least 48 people and forced hundreds of thousands to flee temporarily. That violence has given new political weight to the long-running border referendum discussion.
What the two agreements do
Thailand and Cambodia have relied on two main deals to manage the issue. One, from 2000, covers the joint study and demarcation of the land border. The other, from 2001, concerns cooperation and the sharing of resources in maritime areas.
Anutin said the public should decide whether these arrangements should stay in force or be rejected. He said parliament has set up a committee to examine the matter and that holding a referendum would be government policy.
The idea is to give the authorities a clear mandate. But it does not solve the dispute automatically, and that is where the legal risk begins.
Why experts warn about a legal vacuum
Political scientist Panitan Wattanayagorn of Chulalongkorn University says the agreements worked reasonably well for years, but after the recent clashes they have become politically uncomfortable.
He warns that cancelling them would not end the conflict. Instead, it could create a legal vacuum. In his view, the government would need to explain what replaces the agreements and how it would negotiate that change with Cambodia.
The concern is not only bilateral. In July, the fighting stopped only after mediation in Malaysia and the signing of a ceasefire. The border area is now being watched by military and diplomatic observers from 23 countries, including ASEAN members and major world powers.
What it means for travellers and the region
For most visitors, daily life in Thailand remains calm. Popular destinations such as Bangkok, Phuket, Chiang Mai and Krabi are functioning normally and remain safe for travellers.
Still, the border referendum shows how closely domestic politics, frontier security and regional diplomacy are now linked. Thailand is trying to handle the dispute through a democratic process, but the outcome could either reduce tension or make relations with Cambodia more complicated.
- 817-kilometre Thailand-Cambodia land border
- July 2025 fighting lasted five days
- At least 48 people were killed
- Hundreds of thousands fled temporarily
- Border monitoring involves 23 countries
