Donald Trump stated on Truth Social that the US needs Greenland for national security, claiming Russia and China would otherwise take over.
The White House has suggested buying Greenland from Denmark or deploying the US military to secure it.
Donald Trump announced plans to impose a 10 per cent tariff on Denmark and other European nations, payable until a deal for Greenland's complete purchase is reached.
European officials have strongly opposed these plans, comparing Trump's aggressive tactics to Russia's actions in Ukraine and warning of undermined transatlantic relations.