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Duar War 1864-1865

[also Bhutanese-British War...]

State Entry Exit Combat Forces Population Losses
Bhutan 1865 1865 50000 700000 5000
Britain 1865 1865 50000 32000000 2000

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Britain sent a peace mission to Bhutan in early 1864, in the wake of the recent conclusion of a civil war there. 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 Duar War (1864-65) lasted only five months and, despite some battlefield victories by Bhutanese forces, resulted in Bhutan's defeat, loss of part of its sovereign territory, and forced cession of formerly occupied territories. Under the terms of the Treaty of Sinchula, signed on November 11, 1865, Bhutan ceded territories in the Assam Duars and Bengal Duars, as well as the eighty-three-square-kilometer territory of Dewangiri in southeastern Bhutan, in return for an annual subsidy of 50,000 rupees.

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After the British occupied Assam and made the area part of British India (1826), a longtime frontier dispute began with the state of Bhutan to the north. In the early 1860s, the Bhutanese took strategic frontier mountain passes (duars) from the Assamese and paid no head to the British demand to surrender the lands or give tribute. In January 1865, a small British force invaded Bhutan, but the Bhutanese successfully resisted and evicted the British garrison at Dewangiri. A punitive expedition led by Sir Henry Tombs (1824-74) gradually suppressed the Bhutanese, who agreed to peace on November 11, 1865. By the Treaty of Sinchula, Bhutan ceded the southern passes and set free all captured British, and the British in return agreed to pay an annual subsidy to Bhutan for the passes.

Last Update: December 16, 2000

Armed Conflict Events Database

Armed Conflict Events Data (ACED) is an research project providing independent information about known wars, international disputes, civil wars, rebellions, coups, revolutions, genocides and other violent conflicts. ACED has been online since December 2000. Various partial revisions and modifications have been implemented since then, however, the limitations of the this format hamper further development. During 2005, the decision was made to radically restructure the available conflict information into a database. The new Armed Conflict Events Database (ACEDb) will substantially increase the utility of available conflict data for students of military history. As well, it will offer expanded opportunities to add and edit records of conflict. Existing research material will be maintained in its present form but no revisions are planned. More news about the development of ACEDb may be found at News About the Armed Conflict Events Database. Feedback is welcome.