Azerbaijan, Kazakhstan, Kyrgyzstan, and Turkey join in the Turkic Council.

Azerbaijan, officially the Republic of Azerbaijan, is a transcontinental and landlocked country at the boundary of West Asia and Eastern Europe. It is a part of the South Caucasus region and is bounded by the Caspian Sea to the east, Russia's republic of Dagestan to the north, Georgia to the northwest, Armenia and Turkey to the west, and Iran to the south. Baku is the capital and largest city.

Kazakhstan, officially the Republic of Kazakhstan, is a landlocked country primarily in Central Asia, with a small portion in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbekistan to the south, and Turkmenistan to the southwest, with a coastline along the Caspian Sea. Its capital is Astana, while the largest city and leading cultural and commercial hub is Almaty.

Kyrgyzstan, officially the Kyrgyz Republic, is a landlocked country in Central Asia, lying in the Tian Shan and Pamir mountain ranges. It is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south, and China to the east and southeast. Bishkek is the capital and largest city. Ethnic Kyrgyz make up the majority of the country's over 7 million people, followed by significant minorities of Uzbeks and Russians.

Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia, Armenia, Azerbaijan, and Iran to the east; Iraq, Syria, and the Mediterranean Sea to the south; and the Aegean Sea, Greece, and Bulgaria to the west. Turkey is home to over 85 million people; most are ethnic Turks, while ethnic Kurds are the largest ethnic minority. Officially a secular state, Turkey has a Muslim-majority population. Ankara is Turkey's capital and second-largest city. Istanbul is its largest city and economic center. Other major cities include İzmir, Bursa, and Antalya.