Bhutan (Dzongkha: འབྲུག་ཡུལ་; Wylie transliteration: ʼbrug-yul "Druk Yul"), officially the Kingdom of Bhutan, is a landlocked state in South Asia located at the eastern end of the Himalayas. It is bordered to the north by China and to the south, east and west by the Republic of India. Further west, it is separated from Nepal by the Indian state of Sikkim, while further south it is separated from Bangladesh by the Indian states of Assam and West Bengal. Bhutan's capital and largest city is Thimphu.
Bhutan existed as a patchwork of minor warring fiefdoms until the early 17th century, when the lama and military leader Shabdrung Ngawang Namgyal, fleeing religious persecution in Tibet, unified the area and cultivated a distinct Bhutanese identity. Later, in the early 20th century, Bhutan came into contact with the British Empire and retained strong bilateral relations with India upon its independence. In 2006, based on a global survey, Business Week rated Bhutan the happiest country in Asia and the eighth-happiest in the world.