Britannica Sources used in this answer

Which three countries make up Transcaucasia?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Snow-covered peaks and ridges of the Caucasus Mountains in Russia stretch across the landscape under a pale sky. — Caucasus Caucasus Mountains in Russia.

Transcaucasia, also known as Southern Caucasia, is a region located south of the Caucasus Mountains. It is composed of the following three independent states:

Georgia
Azerbaijan
Armenia

These nations achieved full independence in 1991 following the collapse of the Soviet Union.12