The Caucasus is traditionally divided into two zones, North Caucasus and Transcaucasia. Up to 1990, the U.S.S.R. included all of Caucasia. Now North Caucasus is in the Russian Federation and is subdivided into three regions: Northwest (including the republics of Adyghea and Karachay-Cherkessia and Krasnodar Territory), Central (republics of Kabardino-Balkaria and North Oss…