15 Republics In Former Soviet Union, USSR, Before 1991 Disintegration
The Soviet Union was established in 1922 but disintegrated in 1991.
The 15 republics that constituted the Soviet Union, S.U., include:
▪️Russia
▪️Ukraine
▪️Belarus
▪️Uzbekistan
▪️Kazakhstan
▪️Kyrgyzstan
▪️Tajikistan
▪️Turkmenistan
▪️Azerbaijan
▪️Georgia
▪️Lithuania
▪️ Moldova
▪️Latvia
▪️Armenia
▪️Estonia
Russia was the biggest republic the Soviet Union, controlled about 75% landmass.