1654, Ukrainian cossack leader Khmelnitski signed the Treaty of Peleyaslav with the Russian czar, inviting Russia to rule eastern Ukraine. Since then, the eastern part of Ukraine (the left bank of Dnieper River) has officially merged with the Russian Empire, and the history of alliance between Ukraine and Russia has begun.

/kloc-in the 9th century, most of Ukraine was annexed by the Russian Empire, and the rest was occupied by the Austro-Hungarian Empire. During the chaotic period of the First World War and the Russian Revolution, it gained short-term independence for the Ukrainian people. The Ukrainian Soviet Socialist Republic was founded in 19 17 and merged into the Soviet Union in 1922, becoming one of the countries that the Soviet Union joined. The declaration of sovereignty was adopted on 1990. 199 1 regained its independence on August 24th.

Ukraine and Russia, originally Eastern Slavs, both developed from Russia in Kiev. Later, due to internal contradictions and Mongolian invasion, as well as the rule of Lithuania and the Grand Duchy of Poland, an independent Ukrainian nation gradually began to form.

Eastern Ukraine naturally belongs to Russia, while western Ukraine was annexed by Russian Queen Catherine II in 1764. During this period, the civil wars in eastern and western Ukraine continued until the end of 17. Russia has always adopted a high-handed policy toward Ukraine, and Peter the Great arranged for troops to station in Ukraine, exterminated the rebellion at any time, and arrested those who tried to make Cossack independent, all of which planted the seeds of national hatred.

Later, eastern and western Ukraine were divided and merged by Russia, Poland, Austria-Hungary and Germany for many times. Today, the differences and contradictions between the eastern and western parts of Ukraine have become quite serious. The official language of Ukraine is Ukrainian, but Russian is mostly used in the east and southeast, while almost all Ukrainian is used in the west, even ashamed to speak Russian.