Belorussian Belorussian remains to be the closest tongue to Russian and represents a purely East Slavic language with all its
flexions, the case system, and verb structure. There are about 10,000,000
speakers in; Belarus, Azerbaijan, Kazakhstan, Kyrghyzstan, Latvia,
Lithuania, Russia, Turkmenistan, Ukraine, Uzbekistan, USA, Poland, Estonia
& Moldova. Cyrillic alphabet used. Linguistically between Russian and Ukrainian, with transitional dialects to both.