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 encountering any resistance, a small Bhutan outpost at Gopalganj.

Mynaguri, Daling, Damsong, Samtsi, Dongna, and Buxa were successively occupied by the two left columns, with but little loss on our side, and the military occupation of the Bengal Duars was completed by the end of the year. On the Assam side the Bhutan hill post of Dewangiri was captured, with slight opposition, early in December. A force of some strength was then despatched to capture the fort of Bishensing, but on the arrival in its vicinity of an advanced party the supposed fort was found to consist of a single stone house, occupied by a lama or priest. The necessity for further military operations having ceased with the capture of the hill forts commanding the passes, and its annexation of the Bengal and Assam Duars being thus completed, the Government of India directed the breaking up of the Duars field forces early in February 1865, intending to leave the occupation of the country chiefly to the Bengal Police battalion of about eight hundred strong, which had accompanied the expedition, and a few cavalry posts on the frontier. But when the force was on the eve of breaking up information was received that the Bhutanese were preparing to attack the whole line of posts from Chamurchi to Dewangiri. Dewangiri was attacked by a force under the Tongsa Penlop. The first attack was repulsed. The Bhutanese, however, cut off the water supply of the fort, and succeeded in throwing up a stockade which completely commanded it; they also obtained possession of the Dorunga Pass, thus cutting off communication with the plains. Colonel Campbell was running short of ammunition. General Malcaster had refused to reinforce him, an attempt to send in ammunition failed, and under these circumstances Colonel Campbell determined to evacuate the position under cover of the night and retreat to the plains by another pass known as the Libra Pass. The evacuation commenced at one o’clock on the morning of February 5. Unfortunately, the main