I believe it would be Kazakhstan.
Russia was the largest republic in the Union of Soviet Socialist Republics (USSR).
The USSR no longer exist; however when it did, the largest republic was Russia. At the time of the formation of of the USSR in 1923-1924, Russia was known as the Russian Soviet Federated Socialist Republic.
Christianity is the predominant religion in Russia, with the Russian Orthodox Church being the largest Christian denomination. Islam is the second largest religion in the country, particularly in regions like Tatarstan and Chechnya. Other religions present in Russia include Buddhism, Judaism, and various forms of Protestantism.
Russia is the largest country in the world. The country borders 16 other countries.
According to the CIA world fact website, the ethnic breakdown of people in Russia was as follows in 2002: Russian: 79.8%, Tartar 3.8%, Ukrainian 2%, Bashkir 1.2%, Chuvash 1.1%, other or unspecified 12.1% (2002 census)
Belarus
Russia
Pamir Mountains of Tajikistan
pamir mountains of tajikistan
The largest Moscow is in Russia, although there are Moscows in other countries.
Just Russia. When Russia was the main republic in the Soviet Union, there were 14 other countries within the country. However, the USSR broke up in 1991
Belarus.