Politics of NATO

Since 2025, the second Donald Trump administration of the United States has sought to annex Greenland, an autonomous territory of Denmark, triggering an ongoing international diplomatic crisis. This escalated in early 2026 after Trump refused to rule out the use of military force to annex Greenland and threatened a 25% import tax on goods from several European nations unless Denmark ceded Greenland. Trump's statements sparked a confrontation with Denmark and the EU, reigniting earlier concerns of a US–EU trade war. On 21 January, Trump reversed his position at the 2026 Davos conference, pledging not to use force or tariffs to annex Greenland.

thumb|US government poster promoting the Marshall Plan (1950) Atlanticism, also known as Transatlanticism or North Atlanticism, is the ideology which advocates a close alliance between nations in Northern America (the United States and Canada) and in Europe on political, economic, and defense issues. The term derives from the North Atlantic Ocean, which is bordered by North America and Europe. It is a geopolitical ideology in the same regard as Eurasianism or Gulfism.

cooperation between NATO and seven countries of the Mediterranean

concept in NATO's policy of nuclear deterrence

initiative launched during NATO's 2004 Istanbul Summit

February 2025 speech by Vice President JD Vance

international military exercise in Greenland (2026)

type of international nuclear weapons policy

overview of multilateral relations

the legal procedure of enacting Article XIII of the North Atlantic treaty

US-European Security Cooperation Program