I'm beginning to be more and more of the opinion that we have to intervene. Ukraine is putting up a good defence but how long can they hold out? On the plus side, I read a report in the Finnish media that Russia's military hardware was meant to be updated but most of the money was stolen and spent on luxury yachts etc.
My opinion is that we, meaning all countries able to contribute, should help Ukraine in every way possible that does not carry a high risk of widening the conflict or making it worse. Zelenski and his people have taken a particular path knowing that other countries would not be able to launch military attacks if Russia invaded. At best Nato could try and draw "a line in the sand" and warn Putin that if it is crossed they will enforce it militarily. Maybe cessation of shelling of the civilian population?
Nato has had much time to prepare and make critical moves that might have prevented Putin starting a war, but did not take them. It is notable that the invasion began with Biden rather than Trump in the White House.
Crimea was taken over in 2014 with a war, against essentially alienated separatist groups and other Russian agents in the Donbass region, continuing since then. We know how Putin works, he does something bad and waits for a reaction, if nothing happens he goes on with something worse. Obama and Trump did very little. Biden warned about imminent invasion but was not prepared to help defend Ukraine by even threatening military action when Russian troops moved into the SE region. Nato should have made sure that Putin knew that if he moved troops in they would provide direct military support to Ukraine to defend its borders.