I’m not defending Russia in anyway here, but I kind of get why Russia did what they did. The Ukraine was getting a lot of pressure to join NATO ( Yes I know the Difference between NATO and the UN ) Having a NATO country right next door along one of your borders would be scary to them. Think of it as how the US would feel if Canada and Mexico were not Allies of the US. I don’t think we would like it much either.
Ukraine wasn’t being pressured. They were pressuring NATO. So if Mexico decides to form an alliance with Russia there would be a justification us to invade them and take over control of their country? We didn’t invade Cuba.
I guess I fail to see what risk Ukraine poses to Russia, with or without NATO. Ukraine has been trying to get into NATO for a very long time. There’s a reason they haven’t been accepted. This is precisely why. Like I said earlier, this is straight up imperialism by Russia. This attack was also to try and weaken NATO but it failed miserably. Putin knew that he had the main oil and gas lifeline to Europe and thought it would start up conflicts within Europe. It failed so miserably that two more countries will likely be added and one on the Russian border.
There’s much more than simply NATO encroachment on Russia. Ukraine has huge lithium deposits, they are the breadbasket of Europe much like the plains states here. They aren’t the main reasons for invasion but it’s pretty clear it isn’t NATO.