Are you dense? I mean truly. Are you available in between the ears? There's a video that is easily accessible of him saying that if NATO doesn't pay (whatever the hell that means since defense spending guidelines are meant to be about each country's OWN military budget and are, by no means, mandatory), then he would let Russia do whatever the hell it wanted.
What you probably don't realize is that it is estimated that for the first time ever, every NATO country will reach the 2% threshold when it comes to defense spending compared to GDP. Also, the country that is most likely to be attacked by Russia if Putin were to ever decide to do that (Poland), is the country that spends the most amount of their GDP on defense (even more than the US).