South Ossetia South Ossetia were in Kudaro (Jejora river estuary), Greater Liakhvi gorge, the gorge of Little Liakhvi, Ksani River gorge, Guda (Tetri Aragvi estuary) and Truso (Terek estuary). The Georgian Kingdom of Kartli-Kakheti, part of which was the major territory of modern South Ossetia, was annexed by the Russian Empire in 1801. Ossetian migration to Georgian areas continued in the 19th and 20th centuries, when Georgia was part of the Russian Empire and Ossetian settlements in Trialeti, Borjomi, Bakuriani and Kakheti emerged as well. Following the Russian revolution, the area of modern South Ossetia became part of the Democratic Republic of
South Ossetia the center of South Ossetia, and the plateau that's also roughly in the center of South Ossetia is called Iberia. The Greater Caucasus Mountain Range forms the northern border of South Ossetia with Russia, and the main roads through the mountain range into Russian territory lead through the Roki Tunnel between South and North Ossetia and the Darial Gorge. The Roki Tunnel was vital for the Russian military in the 2008 South Ossetia war because it is the only direct route through the Caucasus Mountains. South Ossetia covers an area of about , separated by the mountains from the more