A country in the South Caucasus region bordering Russia, Georgia, Armenia, Iran and Turkey. A former part of the Soviet Union with a language very close to Turkish.

A country in the South Caucasus region bordering , , , and . A former part of the Soviet Union with a language very close to Turkish.

Note that Azerbaijan is both the name for the country Azerbaijan with a population of 9M people and also Iranian Azerbaijan which is a region in northwestern Iran with a population of around 17M Azerbaijanis.

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