The Bhutan War (or Duar War) was a war fought between British India and Bhutan in 1864–1865.
Britain sent a peace mission to Bhutan in early 1864, in the wake of the recent conclusion of a civil war there, under Ashley Eden. The dzongpon of Punakha – who had emerged victorious – had broken with the central government and set up a rival Druk Desi while the legitimate druk desi sought the protection of the ponlop of Paro and was later deposed. The British mission dealt alternately with the rival ponlop of Paro and the ponlop of Tongsa (the latter acted on behalf of the druk desi), but Bhutan rejected the peace and friendship treaty it offered. Britain declared war in November 1864. Bhutan had no regular army, and what forces existed were composed of dzong guards armed with matchlocks, bows and arrows, swords, knives, and catapults. Some of these dzong guards, carrying shields and wearing chainmail armor, engaged the well-equipped British forces.
The fort, known at the time as Dewangiri, at Deothang was dismantled by the British during 1865. The British initially suffered a humiliating defeat at Deothang and when they recaptured Dewangiri they destroyed much in an attempt to compensate.
Coordinates: 27°25′01″N 90°26′06″E / 27.417°N 90.435°E / 27.417; 90.435
Bhutan (/buːˈtɑːn/; Dzongkha འབྲུག་ཡུལ Dru Ü, IPA: [ʈʂɦu yː]), officially the Kingdom of Bhutan, is a landlocked country in South Asia at the eastern end of the Himalayas. It is bordered to the north by China and to the south, east and west by India. To the west, it is separated from Nepal by the Indian state of Sikkim, while farther 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 fiefs until the early 17th century. At that time the lama and military leader Ngawang Namgyal, the first Zhabdrung Rinpoche, who was fleeing religious persecution in Tibet, unified the area and cultivated a distinct Bhutanese identity. 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.