There are a lot of knowledgeable people discussing the Ukraine war on Medium at the moment. People like Chris Snow and Dylan Combélick and the Nadine Brzezinski and others actually are from that part of the world and/or. still live there and/or have military experience. You can get a lot of information by reading their articles. You have to watch it, because there are a lot of trolls out there pushing misinformation as well. A particularly prominent one is Scott Dunn, who, if you look at his profile, seems to be well educated, but is totally out of touch with reality. The facts become pretty obvious after a while if you read a variety of sources.