Greenland’s prime minister said the Arctic island’s population and its authorities need to start preparing for a possible military invasion, even as it remains an unlikely scenario, as US President Donald Trump continues to threaten taking over the territory. “It’s not likely there will be a military conflict, but it can’t be ruled out,” Prime Minister Jens-Frederik Nielsen said at a press conference in capital Nuuk on Tuesday. Greenland’s government will form a task force consisting of...