Original: It is also an official language of Belarus, Kazakhstan, Kyrgyzstan, and the de facto official language of the unrecognized country of Transnistria and partially recognized countries of South Ossetia and Abkhazia.
Simplified: Russian is the official language of Russia, Belarus, Kazakhstan, Kyrgyzstan and Uzbekistan, also Russian is official language of unrecognized countries Abkhazia, South Osetia and Transnistia.