Turkestan (Turkish: Türkistan, Kazakh: Түркістан, Uzbek: Turkiston, Turkmen: Türküstan, , Chinese: 突厥斯坦, literally "Land of Turks") is a region of Central Asia around the Caspian Sea and Aral Sea. Much of it is currently in China. During the 20th century, much of it was in the Soviet Union.