Organization of Turkic States
The Organization of Turkic States (OTS), formerly called the Turkic Council or the Cooperation Council of Turkic Speaking States, is an intergovernmental organization comprising all but one of the internationally recognized Turkic sovereign states: Azerbaijan, Kazakhstan, Kyrgyzstan, Turkey, and Uzbekistan; while Hungary, Turkmenistan and Northern Cyprus are observers. Its overarching aim is promoting comprehensive cooperation among the Turkic peoples.
Source: Wikipedia — Organization of Turkic States (CC BY-SA 4.0)