Why did Ukraine go to war with Russia? Who is the driver?

With regard to the intensification of the war, the history between Ukraine and Russia can be traced back hundreds of years. The following are some major historical events and contradictions:

Common history: Ukraine and Russia were once part of the Soviet Union, and the two countries have similar historical and cultural backgrounds. However, after the disintegration of the Soviet Union, Ukraine chose independence, and Russia always wanted to regard it as its sphere of influence.

Crimea issue: In 20 14, Ukraine's Crimean Peninsula was annexed by Russia, which aroused widespread concern in the international community. Ukraine and western countries think this is a violation of international law, while Russia thinks it is to protect local Russians.

Pro-Russian region in the east: Since 20 14, Donetsk and Lugansk regions in eastern Ukraine have been divided into pro-Russian and pro-Ukrainian regions. Ukraine believes that the pro-Russian armed forces in these areas are supported by Russia, while Russia believes that these people are protecting their rights.

Energy problem: There has always been a contradiction between Ukraine and Russia. Ukraine used to be an important transit country for Russian natural gas, but the price and payment disputes between the two countries led to the gas supply being cut off many times.

Generally speaking, the historical contradiction between Ukraine and Russia is very complicated, involving territory, nationality, politics and economy. These contradictions still exist, and there is still some uncertainty in the current international situation.