Share FacebookTwitterWhatsAppPinterestLinkedinCopy URLTelegramEmailTumblrReddItPrintKoo WASHINGTON, Jan 6 : Greenland’s key position above the Arctic Circle makes the world’s largest island a key part of security strategy in the High North. But for whom? Increasing international tensions, global warming and the changing world economy have put Greenland at the heart of the debate over global trade and security, and US President Donald Trump wants to make sure his country controls this mineral-rich country that guards the Arctic and North Atlantic approaches to North America.