The United States, Denmark and Greenland have reached a proposed security agreement that would expand the US military presence on the Arctic island and bar non-NATO countries from establishing bases there, though the detailed terms remain unpublished. President Donald Trump said the arrangement gives Washington permanent control over Greenland's security and other US requirements, while a US official said it would also limit investments by adversaries and prevent China and Russia from operating bases on the island. Denmark's government said the pact is due to be signed at the United Nations General Assembly next week, subject to parliamentary action in Denmark and Greenland before it takes effect. Danish and Greenlandic leaders said the agreement preserves Danish sovereignty and Greenlandic self-determination after months of tension over Trump's calls to acquire the territory.