The kingdom of Siam [Thailand] was never colonized by a European country in the past,
Nepal was never colonized by any county in the world. Nepal is small,soldiers were women,kids and old people who fought against British, hills and mountain were advantages, they got the guts to fight against armed force with special kind of weapon named kukuri.
Afganistan and Bhutan
There is no country called "Malamar". If perhaps you were refering to Myanmar, that is a Southeast Asian country.
Indonesia is the richest country in Southeast Asia by GDP. It has the 18th largest GDP in the world. Singapore has the largest GDP per capita of any Southeast Asian country. It has the 13th largest GDP per capita in the world.
Republic of South Vietnam (no longer exists).
Brunei, Malaysia, and Singapore all fit the criteria.
Thailand is the only country in Southeast Asia that have never been colonized.
Afganistan and Bhutan
Srilanka is a Asian country. It is in indian ocean. Srilanka is colonized by king vijaya.
The major colonizers of Southeast Asia were Europeans, Japanese and the U.S. All in all, there were seven colonial powers in Southeast Asia: Portugal, Spain, the Netherlands, Great Britain, France, the United States, and Japan. From the 1500s to the mid-1940s, colonialism was imposed over Southeast Asia.The U.S. colonized the Philippines in the aftermath of the Spanish-American War of 1898.European, American, and Asian powers colonized SEA. The major European colonizers in SEA included Portugal, Spain, the Netherlands, Britain, and France. The American power was the U.S.A. Europeans introduced Protestantism and Roman Catholicism to SEA. During World War II, Japan was the only major Asian country that colonized SEA.Mark Twain was the most famous literary adversary of the Philippine-American War and he served as a vice president of the Anti-Imperialist League from 1901 until his death. The Philippines became a commonwealth in 1935 and independent in 1946 after World War II.
Indonesia is the most populous Islamic nation, and is a Southeast Asian country. Malaysia is another large Islamic Southeast Asian country.
Thailand
malaysia
Thailand is the only country in Southeast Asia that was never colonized by a European power. It maintained its independence by skillfully negotiating with colonial powers and playing them off against each other.
No Brunei is an Asian country in Southeast Asia.
Indonesia
Philippines.
Vietnam.