Because Tajikistan was one the republics with made up the USSR (Union of Soviet Socialist Republics, a.k.a., the Soviet Union) and which gained independence in the early 90s.
There is no Soviet Union since it's disintegrated in 1991. 15 republics of former Soviet Union are now independent countries. The biggest of those republics is Russia.
Until 1991 they were all republics of the former Soviet Union (Union of Soviet Socialist Republics).They were also all part of the Russian Empire until 1917.They are all former Soviet "republics" now independent after the breakup of the USSR.
The Union of Soviet Socialist Republics
Until 1991 they were all republics of the former Soviet Union (Union of Soviet Socialist Republics).They were also all part of the Russian Empire until 1917.They are all former Soviet "republics" now independent after the breakup of the USSR.
Commonwealth of Independent States
Until 1991 they were all republics of the former Soviet Union (Union of Soviet Socialist Republics).They were also all part of the Russian Empire until 1917.They are all former Soviet "republics" now independent after the breakup of the USSR.
Russia, Ukraine, Belarus, and Moldova are former republics of the Soviet Union that are clearly part of Europe. -Star
Central Asia
Latvia, Lithuania and Estonia.
Russia was not divided into separate republics when the Soviet Union was first formed. The Soviet Union was formed when Russia, the Ukraine, Belarus and the Transcaucasian Federation (Georgia, Armenia and Azerbaijan) banded together to form the Soviet Union. The Soviet Union then added more and more republics. In 1991, the Soviet Union dissolved into 15 separate republics.
Union of Soviet Socialist Republics