The September 2026 security agreement signed by President Trump, Denmark, and Greenland leaders provides expanded U.S. military basing rights, overflight access, and restrictions on adversary investments while explicitly preserving Danish sovereignty and territorial integrity. This outcome followed months of U.S. pressure for outright acquisition or annexation that drew NATO concerns and firm rejections from Copenhagen and Nuuk. With roughly three months remaining before 2027 and midterm elections approaching, the compromise deal addresses stated U.S. security objectives without any transfer of ownership. High barriers to acquisition include required parliamentary approvals in Denmark and Greenland, potential congressional involvement, and sustained local opposition. Late diplomatic reversals, deal ratification failures, or unforeseen shifts in Greenland's status remain theoretically possible but face substantial procedural and political obstacles.