Sadly, Europe isn't one entity and the interest wanes the further the countries are. Anyone neighboring Russia is, predictably, helping a lot while also arming themselves. Central Europe somewhat less, and the Mediterranean countries seem to concern themselves mostly with other topics. Seems like the threat should become more substantial before the whole continent awakens.

The US needs greenland because Russia is that much of a threat but we don't need NATO even though it was created because of Russia(USSR) and we are hesitant to supply Ukraine with weapons even though they are actually fighting Russia because it's too expensive but we also are going to buy a country