Cambodia Protests Alleged Thai Military Activities Along Disputed Border

PHNOM PENH, April 20, 2026 (KPT) — Cambodia has lodged a formal protest against what it described as illegal activities by Thai armed forces along disputed sections of their shared frontier, the foreign ministry said Monday.

The government said the actions, reported on April 18, aimed to consolidate Thailand’s “illegal occupation” and violated Cambodia’s sovereignty and territorial integrity.

According to the statement, incidents were recorded in Preah Vihear and Oddar Meanchey provinces.

Officials alleged Thai troops built an observation post near the Preah Vihear Temple and continued road construction close to Boundary Pillar No. 2 in Anlong Veng district.

Additional claims included bunker digging near the Chup Koki checkpoint and infrastructure works in Samraong City and near the Thmar Daun border crossing.

Authorities said the activities breached international commitments, including the UN Charter and ASEAN principles, and rejected suggestions they were defensive or consistent with bilateral agreements.

Cambodia reaffirmed its commitment to peaceful resolution of disputes, stressing borders must not be altered by force.