Azerbaijan (Azerbaijani: Azərbaycan; officially called the Republic of Azerbaijan) is a country in the South Caucasus region of Eurasia. It is next to Russia in the north, Georgia, Armenia in the west, Iran in the south, and Caspian Sea on the east. Its capital city is Baku.
Azerbaijan also includes the Nakhchivan Autonomous Republic, an enclave, which is next to Armenia to the north and east, Iran to the south and west, and Turkey to the northwest.