Trader consensus against a U.S. invasion of Greenland in 2026 stems from the September 22 security agreement signed by the United States, Denmark, and Greenland at the United Nations. That pact expanded American military access through new bases and facilities while explicitly preserving Danish sovereignty and Greenland’s right to self-determination, resolving earlier tensions over annexation proposals. President Trump publicly ruled out military force after months of diplomatic friction within NATO, and Danish and Greenlandic officials confirmed no transfer of territory. With the calendar year advancing and the agreement in force, traders view an invasion as incompatible with the settled diplomatic framework. Late-year shifts in U.S. policy or a sudden collapse of the deal remain the primary variables that could alter the low probability.