Donald Trump’s renewed threats to take over Greenland could pose a direct challenge to China’s ambitions in the Arctic, but some observers say it may also open the door to increased cooperation with Europe. Following the abduction of Venezuela’s former leader Nicolas Maduro, the White House swiftly turned its attention towards the self-governing Danish territory, adding that “of course, utilising the US military is always an option at the commander-in-chief’s disposal”. On Sunday, the US...