Greenland is one of Donald Trump’s biggest obsessions right now.

If you don’t like his dream of the US taking over the self-governed island, which is part of Denmark, then you’ll be punished. 

The president is now slapping tariffs on European nations pushing back against the idea.   

Today, the ABC’s global affairs editor Laura Tingle on how the UK and Europe will respond and what it means for the future of NATO.  

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Laura Tingle, ABC global affairs editor