Donald Trump signs security agreement to expand US military presence in Greenland

Donald Trump: Donald Trump is the President of the United States. In September 2026, he signed a security agreement with Denmark and Greenland that expands the US military presence on the Arctic island through new and upgraded bases while preserving Danish sovereignty. The deal also blocks non-NATO countries from establishing military installations or making sensitive investments without approval from the parties. Arctic Security: The agreement updates the 1951 US-Denmark defense treaty, reaffirms NATO's role in the region, and ensures the pact remains in effect even if Greenland achieves independence. Strategic Access: The deal grants the US broad rights to air, land, and sea routes across Greenland and permits modernization at existing sites alongside new defense areas. Investment Opportunity: Greenland leaders view the enhanced US cooperation as a pathway to attract needed investment in infrastructure and development.