Thailand and Cambodia: Smiles Mask Dangerous Tensions Threatening Southeast Asia
That handshake. It’s a ritual, really, a carefully choreographed pantomime that tells us almost nothing about the reality it purports to represent. There they were in Putrajaya, Malaysia: Cambodia’s Prime Minister Hun Manet and Thailand’s acting Prime Minister Phumtham Wechayachai clasping hands under the watchful gaze of Malaysia’s Anwar Ibrahim. Smiles all around. But smiles are cheap. The real story, the one whispered in policy circles and documented in reports like the one highlighted by the Bangkok Post, is far more troubling: a relationship curdled by distrust, economic rivalry, and the ever-present specter of historical grievances.
The forum at Thammasat University didn’t mince words. Eroding trade, ignored treaty obligations, border disputes, the insidious creep of nationalist rhetoric — it all paints a portrait of two nations edging towards a precipice. “Economic tensions reflect the deterioration in bilateral relations,” warns Assoc Prof Jaruprapa Rakpong, and the understatement is palpable. But why? What unseen forces are driving this wedge? It’s not merely that states feel insecure or domestic politics are volatile. It’s that the architecture designed to prevent these tensions is crumbling, creating a vacuum into which old rivalries rush to fill.
Consider, for instance, the 2020 EU suspension of GSP for Cambodia over political rights. It appears disconnected, a moral stance taken by a distant power. But it’s a crucial domino. The loss of preferential trade access wasn’t just an economic blow; it reshaped Cambodia’s strategic calculus, forcing it to seek new partners and amplifying its sense of vulnerability. And a vulnerable Cambodia is a Cambodia more prone to seeing threats, real or imagined, from its neighbors, including Thailand. The pressure, intended to promote human rights, instead inflamed regional anxieties.
This gets to a fundamental question of international relations: Can we ever truly isolate an intervention’s intended effect from its unintended consequences? The withdrawal of GSP was intended to pressure the Cambodian government to respect political rights. Yet, it simultaneously created an environment where economic competition became a zero-sum game, empowering nationalist factions on both sides of the border to weaponize resentment. Think of it as a perverse feedback loop: well-intentioned policies fueling the very forces they seek to contain.
The reality, experts agreed, is the era of trust and easy cooperation between Thailand and Cambodia is over. Economic retaliation, militarised borders, broken deals, and nationalist rhetoric have eroded the foundations of peace.
History, as always, casts a long shadow. For centuries, Siam (now Thailand) exerted a powerful influence over Cambodia, marked by periods of protectorate status and outright dominance. In the 17th and 18th centuries, for example, Siamese armies repeatedly intervened in Cambodian succession disputes, effectively installing puppet rulers in Phnom Penh. These historical traumas, etched into the collective memory, are easily exploited by those seeking to sow discord. Now layer onto this the scramble for resources in the South China Sea — where Thailand and Cambodia have overlapping maritime claims — the growing reach of transnational crime, and the destabilizing effect of unchecked arms flows, and you have a volatile cocktail simmering on the border.
Michael E. Brown’s scholarship on conflict resolution offers a possible path forward: focus on building shared interests and institutions. He argues that interdependence, particularly economic interdependence, can act as a powerful deterrent to conflict. But this requires more than just platitudes. It requires concrete steps: a permanent border regime with teeth, a binding code of conduct for disputed areas, expanded humanitarian cooperation aimed at addressing the needs of border communities. Easier said than done when trust is already in short supply.
The future of Thai-Cambodian relations hinges on more than handshakes. It hinges on a fundamental question: can they create a durable system of managing disputes within the constraints of international law and mutual respect, or will they succumb to the centrifugal forces of history and insecurity? The alternative isn’t simply a return to the status quo ante; it’s a descent into a cycle of escalating tensions that could destabilize the entire region. The challenge isn’t restoring a mythical golden age, but forging a new, pragmatic equilibrium — one built not on smiles and photo ops, but on sustained, unglamorous, and ultimately indispensable work on the ground. What’s truly at stake is whether these two nations can learn to live, not as enemies, but as uneasy neighbors, forever bound by geography and history. And that requires more than just good intentions; it demands a clear-eyed understanding of the forces pulling them apart.
