US Issues Travel Warning for Thailand-Cambodia Border Amid Escalating Clashes – What Travelers Need to Know Now!

Published on December 21, 2025

The US government has issued a travel advisory for Thailand, warning American citizens to avoid travel near the Thailand-Cambodia border due to ongoing active hostilities and an unpredictable security situation. The warning, issued by the US Embassy and Consulate in Thailand, comes after a renewed outbreak of fighting on December 7, 2025, between Thai and Cambodian forces. The fighting, which has escalated tensions between the two nations, is tied to longstanding territorial disputes over border areas, exacerbating the risks for travelers in the region.

According to the US Embassy, the situation remains volatile with cross-border fire reported on both sides. As of the advisory, travelers are being strongly advised to avoid any travel within 50 kilometers of the border areas, particularly in the provinces of Sisaket and Surin in Thailand, and Banteay Meanchey in Cambodia.

The Cause of Tensions: Longstanding Territorial Disputes

The renewed fighting stems from unresolved territorial disputes that have plagued Thailand and Cambodia for years. A significant point of contention lies in the French colonial-era border maps, which Thailand does not fully recognize. These historical disagreements have led to periodic clashes and violence over disputed areas, with the latest series of confrontations raising the stakes for travelers in the region.

A ceasefire agreement was brokered in October 2025 by international mediators, including U.S. President Donald Trump, who helped negotiate the deal after five days of fighting in July. Despite the ceasefire, tensions have remained high, especially after land mines injured Thai soldiers last month in the contested areas. This has resulted in the suspension of parts of the ceasefire agreement, further aggravating the situation.

What Travelers Should Know: US Travel Advisory and Safety Tips

For tourists planning to visit Thailand or Cambodia, it is crucial to heed the US Embassy’s travel advisory. Travelers are urged to avoid areas near the border, especially in Sisaket and Surin (Thailand) and Banteay Meanchey (Cambodia), where military clashes and firing incidents have been reported.

The US Embassy highlighted the limited ability of U.S. officials to provide emergency services in these areas due to the heightened security risks. Additionally, the embassy strongly recommends registering for the Smart Traveler Enrollment Program (STEP) to receive timely alerts and updates regarding the security situation.

For those currently traveling in or near the affected areas, officials suggest following local authorities’ instructions, staying indoors, and avoiding any area of conflict. The US State Department also advises that travelers plan for the possibility of rapid evacuations and keep a close watch on the latest safety communications from local authorities and the embassy.

Important Travel Tips for Tourists Visiting Thailand and Cambodia

While Thailand and Cambodia remain popular destinations for travelers, the ongoing tensions at the border have heightened the importance of precautionary measures. Here are some travel tips for visitors to ensure their safety during this time:

1. Avoid Border Areas: As per the US advisory, do not travel within 50 kilometers of the Thailand-Cambodia border, particularly in Sisaket, Surin, and Banteay Meanchey.
2. Stay Updated: Regularly check travel advisories and news sources for updates about the security situation in both countries.
3. Register with STEP: Travelers should sign up for the Smart Traveler Enrollment Program (STEP) to receive up-to-date information and emergency assistance from the US Embassy.
4. Keep Emergency Supplies Ready: Always have access to emergency contacts, including local embassies, medications, and travel essentials in case of an evacuation.
5. Follow Local Authorities: Always adhere to the directions and guidelines provided by local authorities and security forces. Avoid any interactions with military personnel and keep a low profile if near the border.
6. Stay Informed on Local Regulations: It is essential to follow any new immigration or border controls that might be implemented during heightened tensions, such as military checkpoints.

Travel Alternatives: Where to Visit Instead

If you had planned to visit the Thailand-Cambodia border region, consider alternative destinations within Thailand or Cambodia that are far from the border conflict areas. Thailand, for example, is home to world-class destinations such as Bangkok, Chiang Mai, and Phuket, which remain safe and welcoming for tourists. Similarly, Cambodia’s Angkor Wat in Siem Reap or the bustling capital, Phnom Penh, offer a wealth of history and culture, without proximity to the troubled border areas.

For travelers looking to enjoy beaches, city life, and cultural exploration, there are plenty of options to consider that allow for a safe and enjoyable stay in these two Southeast Asian gems.

Conclusion: Stay Safe, Stay Prepared for Travel in Thailand and Cambodia

In light of the ongoing hostilities and the US government’s advisory, travelers should approach any trip to Thailand and Cambodia with caution, particularly if you are planning to visit the border region. Ensuring compliance with travel guidelines and being vigilant about personal safety will help minimize any disruptions to your journey. Stay informed, registered, and prepared to ensure you can enjoy the beauty and culture of Thailand and Cambodia without compromising your safety during this challenging time. The travel advisory is an essential tool for visitors, and by following the steps outlined above, you can enjoy a safe, smooth travel experience.