U.S. military action against Greenland faces prohibitive barriers rooted in alliance commitments, international law, and strategic priorities. Greenland remains an autonomous territory of NATO member Denmark, with no active territorial disputes or security crises involving the United States as of mid-2026. Trader consensus at 97% against invasion reflects the absence of any official statements, troop movements, or policy signals from the executive branch or Congress that would indicate planning. Historical precedent shows U.S. engagement limited to diplomatic and economic channels, including past interest in acquisition rather than force. Only extreme, unforeseen developments—such as a complete rupture in NATO relations or an unprovoked Danish military escalation—could plausibly shift probabilities within the remaining months of 2026.