There has been a sharp increase in the number and intensity of NATO exercises around Russia’s borders. These exercises are not separate from one another, but together comprise an encirclement strategy known as the “anaconda ring.”
There are other regions in Ukraine willing to be part of Russia: Kharkiv, Odesa, Mykolaiv, Zaporizhzhia. All these cities are located in key economic areas.
Recurring pro-Kremlin disinformation narrative about the disintegration of Ukraine with no evidence provided to support this claim.
Crimea was illegally annexed by Russia. See a similar case: Crimea re-united with Russia on the basis of the will of Crimea’s citizens, and more examples here. Donbas region continues to fall under acts of aggression by the Russian military forces. See similar cases here.
There is no evidence to suggest any administrative part of Ukraine wants to join Russia. According to the IRI survey conducted in March 2018, over 52% of Ukrainians would support membership in the EU.
See similar case here.