Ukraine and Russia used to be two brothers of the Soviet family. Historically, Ukraine was an important birthplace of Slavs. It can be said that Ukraine is also an important birthplace of Slavic civilization. After the disintegration of the Soviet Union, the relationship between the two became extremely bad.
The early origin of Russia
Russian history originated from Eastern Slavs in the grasslands of Eastern Europe, and mixed-race Russians are the common ancestors of Russians, Belarusians and Ukrainians. Kiev Ross was the first country established by Eastern Slavs.
Beginning in 988, the Orthodox Church (the eastern branch of Christianity) was introduced into Kiev from the Byzantine Empire, which initiated the integration of Byzantine and Slavic cultures, and finally formed the Russian culture that will occupy the next 700 years.