At this moment, the Russian military is very weakened. Europe doesn't have overwhelming force but could easily kick Russia out of Ukraine. (Except it won't for political reasons.)
It is easy to talk about war, Europe would win the battle for Ukraine if they entered the war, no doubt about it. What that means for the EU politically makes an intervention in Ukraine a pipedream.
I lived when the defense industry got money during the cold war, of course they need more money to win and obviously they will do everything they can to get more funding.
