The cases you mention are pre WW2.
Basically if others are doing it, it's fine if even more war crimes are committed. Got it.
BTW US, UK and Germany (+others) are not only arming, they are wholeheartedly enabling Palestine genocide.
Why the heck would Russia care about internal coup in Ukraine? Democratic referendum on secession is legal only when a) it's lawfully executed and b) the territory is not annexed but rather it is independent. Shelling civilians is subject to international law and not some ground for an illegal war and annexations. Again. Annexation in any form or shape is against international law. So is an illegal war.
If Russia annexed them it doesn't mean it was legal or legit move. It is against international law, against Minsk agreement and even Putin himself told many times that he doesn't have problem with Ukraine and its borders. But then again, he said there will be no invasion days before ... invasion. Russian invasion and land grab has no legal base, it's just a nuclear country abusing its power and abusing weakness of the west and US and other western lackeys.
Yes, anything that works.
When there were bombers, drones, rockets and missiles, right.
The most problematic bit is left out - when? This week will certainly take a lot of time.
Not just legally, also practically. You can't hold elections while being bombed.
Move to Canada or EU 🙃
...and plenty others
The last known activity was around the start of the war when Russian soldiers dug in only to be evacuated in few days after due to radioactive sickness and never to be seen again 🤷
Excellent news, planet Earth and your health are thankful.