In addition to the answers you’ve gotten already, here’s some links that may be of interest to you.
How did the whole war in the Donbas start? Why did Donets and Luhansk declare independence?
According to Lenin’s definition of imperialism, is the Russian Federation imperialist?
PSL Statement on Russia’s military intervention in Ukraine
Most of these links are a few years old already, but at a glance they appear to me to still be relevant. I’m unfortunately busy with work so I can’t take a more in-depth look at the moment, but hopefully this will still be of some value.
oh damnit lol. thanks, should be fixed now