Will Europe Fight For Greenland If Trump Invades?

Since the operation against Nicolas Maduro, the Trump Administration has been in bullish mood about its ability to use military power to get anything it wants around the world. And one of the most commonly mentioned targets in the last few days has been Greenland. They assume that the US has such overwhelming force, nobody would try to stop an armed invasion. But Denmark is a member of NATO, and the pledge is that an attack on one is an attack on all. So will European NATO members actually fight for Greenland should it come to it? Let's discuss.