Independence of Bhutan

Bhutan is one of the few countries which has been independent throughout the majority of its history. It has not been conquered, occupied, or governed by an outside power for most of its history, and has remained relatively isolated. Although there has been speculation that it was under the rule of the Kamarupa Kingdom or the Tibetan Empire in the 7th to 9th centuries, there is only circumstantial evidence. The country has continuously and successfully defended its sovereignty throughout history.

Thus Bhutan doesn't have an Independence Day because it was never under anyone's rule.

However, in 1910 under the Treaty of Punakha, Bhutan recognized the suzerainty of the British government in exchange for political autonomy. And in 1949, Bhutan signed a Treaty with India, the Treaty of Friendship, in which Bhutan agreed to let India guide its foreign policy. The treaty was re-negotiated in 2007 and this provision removed.

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