Just that really.
A few years ago I wouldn't have even considered the concept of America trying to forcefully take a territory which is part of a friendly, peaceful country and fellow Nato member. Now though Trump seems so mad I'm worried it could actually happen.
Surely if it did happen America would be expelled from Nato and ourselves (UK) and other Nato countries would have defend Greenland from a US invasion, and a major international conflict would be triggered.
I can't work out anymore if I'm just being alarmist and have watched too much news, or if this is an actual possibility we should all be worried about.
YABU - This is never going to happen in reality. The news is just scare-mongering.
YANBU - Trump is mad enough to actually attempt this and risk major international conflict.