At the United Nations General Assembly in New York, the United States, Denmark, and Greenland formalized a security pact that extends American military reach into the Arctic for the first time since the Cold War's end. The agreement, signed by President Trump, Prime Minister Frederiksen, and Prime Minister Nielsen, authorizes two new US military installations on Greenland and the deployment of advanced missile defense infrastructure on an island whose geography places it at the crossroads of great power competition. While the announcement carries the weight of historical significance, analysts