Security Alert: Intensified Armed Conflict on the Cambodia-Thailand Border (U.S. Embassy)

👉 In short: The U.S. Embassy warns of active hostilities along the Cambodia–Thailand border, urges U.S. citizens to avoid the area, follow local security guidance, and keep emergency plans updated.

Key Points

• ⚠️ Escalation of conflict: Armed clashes, including artillery and small arms fire, have intensified along the Cambodia–Thailand border since December 8.
• 🚫 Travel restriction: U.S. citizens are advised to avoid all travel within 50 km of the border due to active hostilities and unpredictable conditions.
• 🛡️ Limited assistance: The U.S. government has restricted ability to provide emergency services in affected provinces.
• 📋 Safety guidance: Follow Thai security services’ instructions, shelter in place if caught nearby, and update personal emergency plans.
• 📲 Stay informed: Enroll in the Smart Traveler Enrollment Program (STEP), monitor alerts via WhatsApp, and check updates from the U.S. Embassy and State Department.

Location: Thailand-Cambodia Border and Adjacent Provinces

Date: December 10, 2025

Event: The U.S. Embassy is monitoring reports of significant escalation in the conflict along the Thailand-Cambodia border. On December 8, reports of artillery and small arms fire exchanges in border areas intensified. Both sides continue to report cross-border fire, and conditions remain volatile. U.S. citizens should avoid all travel within 50 kilometers of the Thailand-Cambodia border due to active hostilities and the unpredictable security situation. The U.S. government has limited ability to provide emergency services in affected provinces. U.S. citizens residing or traveling near affected areas should follow instructions from Thai security services and monitor local authorities for updated information.

Actions to Take:

Assistance: 

State Department – Consular Affairs

888-407-4747 or 202-501-4444