President Donald Trump spent months arguing that the United States needed Greenland. On Tuesday, he signed an agreement that expands America’s military role on the Arctic island while leaving its sovereignty where it was: with the Kingdom of Denmark and the people of Greenland. The agreement, signed in New York by Trump, Danish Prime Minister Mette Frederiksen and Greenland Prime Minister Jens-Frederik Nielsen, permits the United States to strengthen its existing Pituffik Spa