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Thailand-Cambodia Border Conflict

Jul 30, 2025

Overview

This lecture discusses the recent escalation of armed conflict between Thailand and Cambodia, focusing on historical border disputes, recent military clashes, and the political fallout from a leaked diplomatic phone call.

Origins of the Conflict

  • Both Thai and Cambodian militaries accuse each other of starting the recent fighting.
  • Conflict began near a Hindu temple on the disputed Thai-Cambodian border.
  • Each side claims the other opened fire first, using heavy weapons and drones.

Historical Context & Border Dispute

  • The Thai-Cambodian border is 817 km long and not clearly demarcated in some regions.
  • Cambodia’s claim over the temple is based on early 1900s French colonial maps.
  • Thailand disputes these maps and has maintained de facto control over the site.
  • The temple holds religious significance for both countries, especially the old Khmer Empire.
  • The International Court of Justice (ICJ) awarded temple areas to Cambodia in the 1960s, but Thailand stopped recognizing the ICJ’s authority.

Recent Military Escalation

  • Multiple contested border areas are now active conflict zones.
  • Cambodia has fired rockets and artillery into Thailand; Thailand has conducted airstrikes.
  • At least 11 Thai civilians have died in the latest clashes.
  • Landmines in disputed zones have recently injured Thai soldiers, both sides blame each other for the new mines.

Economic and Diplomatic Retaliations

  • Thailand cut off cross-border electricity transfers; Cambodia responded with bans on Thai imports.
  • Both sides have closed border crossings and implemented further trade restrictions.

The Leaked Phone Call and Political Crisis

  • Thai PM Shinawatra called Cambodian leader Hun Sen to deescalate tensions.
  • Parts of the call were leaked by Hun Sen, showing Shinawatra expressing sympathy and criticizing her own military.
  • The leak caused public outrage in Thailand, government instability, and Shinawatra’s suspension.
  • Thai leadership now faces pressure to respond firmly, reducing room for compromise.

Ongoing Tensions & Outlook

  • Diplomatic relations are downgraded, and both countries warn of possible conflict escalation.
  • Experts believe all-out war is unlikely but worry about lack of leadership to deescalate.

Key Terms & Definitions

  • Border dispute — Disagreement over the precise location of the official border between countries.
  • De facto control — Actual, practical control over an area regardless of legal recognition.
  • ICJ (International Court of Justice) — UN court that settles disputes between countries.
  • Landmine — Explosive device placed on or under the ground, often remaining after conflicts.

Action Items / Next Steps

  • Review the history of the Thai-Cambodian border and the role of the ICJ.
  • Read more about the significance of the Preah Vihear temple to both countries.