Answer:
The Soviet Union or U.R.S.S. existed from 1922 until 1991, it was a large socialist state of Eurasia; from the 15 states comprising it many of them have already been dissolved or turned into different countries such as Belarus, Kyrgyzstan or Moldova; The U.R.S.S. had a centralized economy and a centralized government which capital was Moscow, located in Russia, the most powerful of all it's states (and also the largest country of all); Moscow is yet Russia's capital, and Russia is still the most powerful country from that region.
Step-by-step explanation: