U.S. President Donald Trump has declared that Greenland is essential to American national security and should come under U.S. control, following his appointment of Louisiana Governor Jeff Landry as special envoy for Greenland affairs. The move has sparked renewed diplomatic tension with Denmark, which retains sovereignty over the Arctic island.

Copenhagen reacted sharply, summoning the U.S. ambassador for an explanation. Danish Foreign Minister Lars Løkke Rasmussen called the appointment 'deeply concerning,' warning that Denmark would not accept any action undermining its territorial integrity. Greenland’s Prime Minister Jens-Frederik Nielsen emphasized that only Greenlanders can decide their future, expressing openness to cooperation with the U.S. based on mutual respect.

The controversy revives Trump’s earlier 2019 attempt to purchase Greenland, rejected by both Denmark and Greenland. Analysts see the latest step as part of Washington’s growing strategic focus on the Arctic amid rising competition with Russia and China. The European Union has voiced full solidarity with Denmark and Greenland, underscoring the geopolitical stakes of the unfolding dispute.