Trump announces agreement on expanded U.S. security role in Greenland

President Donald Trump says the U.S., Denmark and Greenland have reached an agreement providing the United States with a permanent role overseeing Greenland's security needs.
According to Trump's description, U.S. adversaries would not be permitted to establish military bases, maintain a military presence or make sensitive investments in Greenland without U.S. approval. He also said the U.S. plans to significantly expand its military presence on the island.
The announcement could have implications for Arctic security and strategic competition, although the agreement's precise legal structure and implementation will be important for determining its practical scope.