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Thailand and Cambodia Mobilize Forces Ahead of Talks on Preah Vihear Border Dispute

Cambodia's announcement to pursue four contested border sectors at the International Court of Justice follows a deadly May 28 clash that has put both armies on high alert.

A Buddhist monk visits the Preah Vihear temple on the border between Thailand and Cambodia, November 12, 2013. REUTERS/Samrang Pring/File Photo
Buddhist monks visit the Preah Vihear temple on the border between Thailand and Cambodia, November 12, 2013. REUTERS/Samrang Pring/File Photo
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Police officers stand guard in front of the Royal Embassy of Cambodia during a protest by royalist activists, following a recent clash at the Thailand-Cambodia border on May 28, 2025, in Bangkok, Thailand, June 6, 2025. REUTERS/Chalinee Thirasupa/File Photo

Overview

  • On May 28, troops exchanged fire in a disputed area between Preah Vihear and Ubon Ratchathani provinces, killing a Cambodian soldier.
  • Cambodian Prime Minister Hun Manet said Phnom Penh will refer four undemarcated border sectors to the International Court of Justice for adjudication.
  • Thailand’s government reiterated it does not recognize the ICJ’s jurisdiction and urged reliance on existing bilateral mechanisms to resolve the dispute.
  • Thailand’s military declared itself ready to launch a “high-level operation” to defend sovereignty, citing intelligence of increased Cambodian troop readiness.
  • The Cambodia-Thailand Joint Boundary Commission is scheduled to meet on June 14 to seek a diplomatic settlement.