Why did Crimea leave Ukraine and join Russia?

Ukraine is the birthplace of all Eastern Slavs. After Russia in Kiev was wiped out by Mongols, some went to today's Russia, and some stayed in Ukraine and were ruled by Poland.

After Russia became powerful, it took advantage of the Ukrainian-made Polish rebellion and occupied the eastern part of Ukraine today.

Therefore, Ukraine and Russia are two hairs and heavy hairs.

Especially in eastern Ukraine, there is a high sense of identity with Russia, while in western Ukraine, it is more pro-Western, especially in Lviv, the earliest independent city, which was originally the territory of Poles and is now the mainstream of Poles.

Crimea is another problem. This place was robbed by Russia from the Ottoman Empire. The indigenous people are Tatars, or Crimean Tatars. During Stalin's time, they were framed for collaborating with the Nazis and forced to move. Since then, Russians have become the main population in this area. So far, even though Crimean Tatars exiled to Uzbekistan have been returning in recent years, the number is only 65.

This peninsula was once the territory of the Soviet Union, and Khrushchev gave it to Ukraine to join the Republic. After the disintegration of the Soviet Union, Russia and Ukraine discussed coming back, but Ukraine refused to do so and wanted to immigrate to the past, but now only 25% of Ukrainians are still there.

This place has an important geographical position. It is the mouth of the Black Sea, with Sevastopol. It is the largest shipbuilding base in Russia and the Soviet Union. The Soviet nuclear-powered aircraft carrier was built here, and now it is rented by the Russian Black Sea Fleet as a military port.

In short, this place is very important to Russia, and Crimea also has a relative sense of belonging to Russia.