"The European nation's rules of engagement requires soldiers to “immediately” counter-attack invading forces without awaiting orders. On Wednesday, Denmark's defence ministry confirmed the existence of the 1952 rule and added that it "remains in force".

The US lost big time in the jungles of Vietnam and in the deserts of Afghanistan, it's high time they complete the collection by getting their asses handed to them in icy Greenland

https://www.lbc.co.uk/article/danish-troops-shoot-first-us-greenland-5HjdQNW_2/