Russian Soviet Federative Socialist Republic

+The Russian Soviet Federative Socialist Republic (RSFSR) was the largest and most populous constituent republic of the [Soviet Union](/wiki/soviet_union). As the legal successor to the [Russian Empire](/wiki/russian_empire), it formed the core of the USSR and became modern Russia upon the Soviet collapse.

+## See also

+- [Soviet Union](/wiki/soviet_union)

+- [Soviet Republics](/wiki/soviet_republics)

+- [Russia](/wiki/russia)