You are making same mistake as many others. Russian Federation != Russia. If something was owned by Russia, then it doesn't mean that it should be owned by Russian Federation automatically.
Russian Federation tries to pretend like they are the only right owners of everything, viewing others nations as traitors, who need to be executed for their act of stealing from Mother Russia.
In reality, Russian Empire (AKA Jail of Nations) was disbanded. Each nation had right to create their own country. Actual Russia renamed itself into Ukraine. Russian Federation has same rights on territory of Russian Empire as other nations, but RF uses lies and fakes to pretend like it has more rights than others, then start wars and captures or tries to capture territories, which they newer owned in first place.
Russian Federation tries to pretend like they are the only right owners of everything, viewing others nations as traitors, who need to be executed for their act of stealing from Mother Russia.
In reality, Russian Empire (AKA Jail of Nations) was disbanded. Each nation had right to create their own country. Actual Russia renamed itself into Ukraine. Russian Federation has same rights on territory of Russian Empire as other nations, but RF uses lies and fakes to pretend like it has more rights than others, then start wars and captures or tries to capture territories, which they newer owned in first place.