The country was run by the Chairman of the Presidium of the Supreme Soviet of the Russian SFSR. Its capital was Moscow, also the capital of the Soviet Union.
Following the collapse of the USSR in 1991, RSFSR rejected a socialist system and went through reforms. It was renamed as the Russian Federation under the leadership of President Boris Yeltsin. The CIS, Commonwealth of Independent States, founded after the breakup of the USSR, loosely bound former USSR republics (except for Latvia, Lithuania and Estonia).
Even after breakup, Russia still remains the largest country in the world.