It was never colonised. They operated successful diplomacy with the French, who colonised neighbouring Laos.
No, Thailand has never been colonized.
Thailand is known as "land of white elephant" because Thailand is the only Southeast Asian nation that has never been colonised by the europeans.
It was called Siam, and it managed to avoid being colonised, through skilful diplomacy.
lckvmeslkfs
Invaded! ..
Nepal
The UK has never been colonised.
Thailand never was colonized."King Nang Klao, Rama III (1824-1851) reopened relations with western nations and developed trade with China. King Mongkut, Rama IV, (1851-1868) of "The King and I" concluded treaties with European countries, avoided colonialization and established modern Thailand. He made many social and economic reforms during his reign."
Britain never colonised Argentina, Spain did.
During the British Empire they did lease Hong Kong and people lived there but that was only a small portion of China. It was never colonised.
Thailand was never colonized by any country.