Thailand–Cambodia Border Tension

Source:  CNN

Subject:  Mapping

Context: Renewed fighting has erupted along the Thailand–Cambodia border, with artillery, rockets, drones and airstrikes used by both sides, causing rising civilian and military casualties.

About Thailand–Cambodia Border Tension:

What the conflict is?

  • A long-running border dispute along their 817 km undemarcated frontier, rooted in colonial-era mapping.
  • Both sides claim sovereignty over specific stretches near ancient temple complexes and forested highlands.

Historical Background:

  1. Colonial-Era Mapping (1907):
    • The border was first mapped by France (colonial ruler of Cambodia) in 1907; Thailand (then Siam) later contested parts of this map, especially around ancient temples and high ground.
  2. Preah Vihear Temple Dispute:
    • In 1962, the International Court of Justice (ICJ) awarded the Preah Vihear temple to Cambodia, but Thailand disputes parts of the surrounding territory.
    • In 2013, the ICJ reaffirmed Cambodia’s sovereignty over land around the temple and asked Thailand to withdraw forces, but Bangkok has questioned the ruling’s scope.
  3. Periodic Armed Flare-Ups:
    • Major clashes occurred in 2008–2011, including a deadly artillery exchange in 2011 around Preah Vihear and nearby temples, killing soldiers and civilians and displacing thousands.
  4. Recent Escalations in 2025:
    • Tensions rose after May 2025 skirmishes and a Thai soldier’s death, followed by stricter border measures and trade bans.

Places and Areas Under Tension:

  • Preah Vihear Region:
    • Hilltop UNESCO World Heritage temple and surrounding high ground remain symbolic and strategic flashpoints.
    • Mekong River is the major waterway in Preah Vihear Province, featuring significant spots like the Preah Nimith Waterfall
  • Border Provinces (Thailand):
    • Surin, Buri Ram, Sa Kaeo, Sisaket, Trat – reports of shelling, cross-border fire, and large-scale evacuations into temporary shelters.
  • Border Provinces (Cambodia):
    • Adjacent districts in Oddar Meanchey, Preah Vihear, Banteay Meanchey, Battambang, Pailin, Koh Kong seeing civilian casualties, infrastructure damage, and internal displacement.