<p>Greenland is one of Donald Trump’s biggest obsessions right now.</p><p>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. </p><p>The president is now slapping tariffs on European nations pushing back against the idea.   </p><p>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.  </p><p>Featured: </p><p>Laura Tingle, ABC global affairs editor</p>