The Russian campaign to subdue the North Caucasus ran from the early nineteenth century to the surrender of Imam Shamil in 1859 in the east and the defeat of the western Circassians in 1864. In the north-west, where resistance had been sustained by a mountain population Russia could not garrison, the army adopted a policy of clearance: villages and crops were destroyed and the inhabitants offered relocation to the plains under Russian administration or emigration to the Ottoman Empire. Britannica records that from 1860 the population was pressed eastward toward the Kuban and that nearly all chose emigration instead, about 400,000 people, with many thousands dying of starvation and disease on the way. Embarkation on the Black Sea coast in overcrowded vessels, and reception in Ottoman ports without adequate provision, produced very high mortality. Circassians today form large diasporas in Turkey, Jordan, Syria and Israel. On 20 May 2011 the Parliament of Georgia became the first legislature to recognise the events as genocide; the Russian Federation rejects that characterisation, treating the emigration as a wartime consequence rather than a policy of destruction.
The Russian Empire conquered the North Caucasus and expelled the Circassian (Adyghe), Ubykh and Abaza populations of the north-western Caucasus to the Ottoman Empire
The baseline is contested and politically charged. Russian imperial administrative estimates of the 1860s imply somewhat under a million; Western scholarship, including Richmond and Shenfield, works with a pre-war population of roughly 1-2 million; Circassian national historiography, citing an 1830 figure, claims more than 4 million. The 1897 Russian census found only about 150,000 Circassians remaining in the Caucasus. Estimates of those expelled run from 500,000 to 1.5 million and of the dead from 400,000 (McCarthy) to over a million (Shenfield).
The high end is Walter Richmond's figure of at least 600,000 Circassians dead from massacre, starvation and exposure, derived from Russian archival material and demographic reconstruction and used by Circassian organisations seeking recognition of a genocide. The low end reflects more conservative readings that treat the mortality as concentrated in the embarkation camps, the sea crossing and the first Ottoman winter, and that regard the pre-war population estimates on which the higher figures rest as too high. Britannica states only that many thousands died of starvation and disease en route. Russian official historiography disputes the higher figures and the intent they are used to establish.
Richmond's archival study documents the burning of villages, the destruction of crops and stores to compel departure, and killings during the final campaign; Britannica records the deaths from starvation and disease during the deportation itself.
Russia, Turkey, Georgia, Syria