RealLifeLore published a very well documented, and propaganda-free, video about why Russia is invading Ukraine https://www.youtube.com/watch?v=If61baWF4GE
- Russia feeling threatened by NATO expansion
- Ukraine having plenty of natural ressources
- Building the infrastructure to harvest the natural ressources by western companies would mean closer ties to the west and accelerated EU / NATO membership talks and also less dependence of the west on Russias energy (or a direct competition)