Yerevan, the capital of Armenia, has formerly been known as Erebuni and Ereun.
Belarus, is the answer and it is located just North of Ukraine.
The former Transcaucasian Soviet Republic consisted of Georgia, Albania and Azerbaijan.
Belarus
Baku (known for its large petroleum deposits) is the capital city of the Republic of AZERBAIJAN.
The Latvian Socialist Soviet Republic.
Belarus
Belarus
Estonia
macedonia
Baku was the capital of the Azerbaijan Soviet Socialist Republic. As for the ethnic affinity, the Azerbaijanis are nearer to the Medes, the Persians than (the Iranians).
It is the capital of Turkmenistan. (transliterated from Russian, the spelling is Ashkhabad).