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:

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• Recent Escalations in 2025: Tensions rose after May 2025 skirmishes and a Thai soldier’s death, followed by stricter border measures and trade bans.

• 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

• 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.

• 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.

• Adjacent districts in Oddar Meanchey, Preah Vihear, Banteay Meanchey, Battambang, Pailin, Koh Kong seeing civilian casualties, infrastructure damage, and internal displacement.