The Secret War was the covert US campaign in Laos during the Vietnam War. Long Tieng was its base, and you can understand it best at the Plain of Jars and in Vientiane.
Advisory Status (July 28, 2026 Update)
• US State Department: Rates Laos Level 2 (Exercise Increased Caution) and Xaisomboun Province Level 3 (Reconsider Travel) because of civil unrest.
• UK FCDO: Advises against all but essential travel to the province, and travel insurance may not cover you there.
• Canada: Advises permission and caution around Long Tieng.
Check each government site before you book.
The Short Version
During the Vietnam War, Laos was officially neutral while the CIA ran a covert war from bases such as Long Tieng, using Hmong forces led by General Vang Pao. The war ended for the Hmong in May 1975, when Vang Pao was airlifted out and thousands of families fled.
The Legacy You Will Still See
Unexploded ordnance remains across the country. In practice this means you stay on marked paths, never touch metal objects, and travel with local guides who know the ground. This is the single most important safety rule in rural Laos.
Where to Understand It, Safely
The Plain of Jars in Xieng Khouang Province has cleared, marked paths and a strong story about the war. In Vientiane, a private guide can bring the history into focus through museums, memorials, and conversations. These stops give you the Secret War without entering a restricted zone.
Why Local Guides Matter
The history is told differently by different families. A local-owned operator running a private Laos road trip with an English-speaking guide can introduce you to people who lived it, and can tell you honestly what is open and what is not. This is the difference between a lecture and an understanding.
Next Step
If your interest is Long Tieng specifically, read our Long Tieng guide first.
Frequently Asked Questions
What was the Secret War in Laos?
A covert US and CIA-backed campaign in Laos during the Vietnam War.
Where can I learn about it safely?
The Plain of Jars and a private guide in Vientiane.
Is unexploded ordnance still a risk?
Yes. Stay on marked paths and travel with local guides.
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