This working paper provides a brief overview on the geopolitics of the Organization of Turkic States OTS and of Türkiye (Turkey) as the member state with the largest population and economy. After a series of summits of Turkic States, the Turkic Council was founded in 2009 with the Nakhichevan Agreement. The Organization of Turkic States (OTS) was founded in 2021 the successor of the Turkic Council with the current member states Azerbaijan, Kazakhstan, Kyrgyzstan, Türkiye, and Uzbekistan and the observers Hungary, Turkmenistan, and the Turkish Republic of Northern Cyprus. The OTS is now the umbrella organization and coordination center for other Turkic organizations and for relations to other international organizations. In 2021, the Turkic World Vision 2040 was released that includes four main areas of cooperation, the political and security cooperation, the economic and sectoral cooperation, the people-to-people cooperation, and the cooperation steps with external parties. The 5 member states cover 4.2 million km² and have over 160 million inhabitants. While Türkiye represents more than half of the inhabitants, Kazakhstan has the largest land mass with 2.7 million km². Türkiye has therefore the largest population and economy within the OTS. The three observer states add approximately 17 million inhabitants and cover almost 0.6 million km². The OTS is still in the early phase of possible cooperation, as Türkiye’s trade relations with the Turkic States are still at a low level. The main strategic asset of the OTS is its coverage of the Central Asian transportation routes for trade, resources, and energy. In the energy sector, various pipeline projects are discussed, under construction or already active. This is also important for the Shanghai Cooperation Organization SCO that covers energy production and transportation and the Chinese Belt and Road Initiative. Another geopolitical issue is the discussion about the Zangazur Corridor in Armenia which could connect Nakhichevan with the main part of Azerbaijan. While the OTS is important between for the cooperation between Turkic States, it is only one dimension of the geopolitics of the largest OTS member Türkiye. Based on three strategic concepts, the Neo-Ottomanism, a reference to the Ottoman Empire as leading power, the Strategic Depth, a reference to Türkiye’s central position and its historical and cultural ties to its neighbors and the Blue Homeland (Mavi Vatan) that defines maritime claims, Türkiye changed to a more active foreign policy and is expanding its influence sphere in the Mediterranean Sea and the Middle East Region. This includes military presence in Libya, Syria, Northern Cyprus, but also south of the Suez channel with positions in Suakin (Sudan), Qatar and Somalia. This is accompanied by a balancing strategy between West and East to increase political freedom of action, but resulted in a variety of policy issues with the EU, NATO, and Untied States which are briefly presented in the working paper. In summary, the OTS is a geopolitical actor with a large potential for further cooperation.