To the US, Russia and China, the Arctic is considered pivotal - that’s why the struggle over its land, sea and sky is accelerating.   US President Donald Trump wants Greenland, Russia is modernising its Arctic military bases, Chinese icebreakers are opening new routes and spies are being unmasked.   But as the battle for one of the world’s coldest places heats up, an increasingly fragile security balance may be breaking down, leading to an escalating arms race.   Tap the link in BBCNews’s bio to read more about the struggle for control of the Arctic.    (Getty, Google)   #Arctic #BBCNews