Donald Trump has repeated his desire to control Greenland as a matter of national security, targeting Russian and Chinese interest in the Arctic. Competition is heating up over shipping routes and stores of natural resources.The Global Story brings you one big story every weekday, making sense of the news with our experts around the world. Insights you can trust, from the BBC World Service. For more, go to bbcworldservice.com/globalstory or search for The Global Story wherever you got this podcast.