The North Atlantic Treaty Organization (NATO) is a transatlantic political-military alliance between North American and European countries with the goal of mutual defence.
At GlobalVoices 2026, NATO delegates will face some of politics’ most pressing recent issues. US politics are rapidly changing, and with this, US support and investment in NATO are in flux. With the US as a major economic and military power, delegates must assess NATO’s future amid US unilateralism. Alongside this, delegates will debate Defence Spending: The Price of Security in the NATO Alliance — confronting how financial commitments underpin collective defence and alliance credibility.
The Past
Established on April 4, 1949, in Washington, D.C., NATO was founded on three goals: deterring Soviet expansionism, forbidding the revival of nationalist militarism in Europe through a strong North American presence on the continent, and encouraging European political integration. Originally with 12 member countries—the United States, Canada, the United Kingdom, France, Belgium, Denmark, Iceland, Italy, Luxembourg, the Netherlands, Norway, and Portugal—the organization has grown to encompass 32 members, with its newest member, Sweden, joining in 2024.
With the original intent of establishing an alliance to stand against the Soviet Union and the rise of communism in Europe, NATO’s central doctrines have since been applied to address wider security challenges across regions including Africa, Asia, and South America. The North Atlantic Treaty, with only 14 articles, is the central document of the alliance. Its core principle of mutual defense is enshrined in Article 5, which states that “an armed attack against one or more of them… shall be considered an attack against them all.”
In its 77 years of operation, Article 5 has only been invoked once, following the September 11th terrorist attacks on the Twin Towers in New York City; this resulted in NATO-led air and naval operations in Afghanistan against al-Qaeda and the Taliban.
The Present
The Ukraine–Russia war continues to persist with wide-reaching impacts. While Ukraine is not a member of NATO, the country is seen as a military and technological asset for European defence, and as such has received significant support from its European and North American allies. Further intervention by NATO powers threatens direct conflict with Russia. The world is not keen on nuclear powers in combat.
Defence spending sits at the centre of these tensions. As member states increase military aid and modernise forces, questions of burden-sharing have intensified. Economic uncertainty, inflation, and shifting trade relationships complicate national budgets, forcing governments to balance domestic priorities with alliance commitments.
US President Donald Trump made clear his intentions to obtain Greenland, a self-governing territory within the Kingdom of Denmark, as a matter of national security. Upon hearing that Denmark was not open to selling Greenland, Trump insisted he would obtain it “one way or the other,” and only definitively ruled out military involvement several weeks later. He also made numerous threats to impose tariffs on certain EU nations to encourage this handover. Early in his presidency, he imposed global tariffs with colossal economic implications. This shift in US economic policy has led nations throughout the world to reassess their trade relations and form new alliances to maintain economic stability independent of the US.
President Trump has historically threatened to withdraw the US from NATO, most recently after NATO refused to support US military actions in Iran. As the situation continues to develop in the Middle East, North Atlantic relations remain in the balance. As NATO’s most significant military power in terms of both defence spending and technological capabilities, US withdrawal from NATO would have a significant impact on the organization’s international authority.
The Future
NATO is facing a period of significant economic and political transition. The alliance must contend with:
Internal divisions over defence spending commitments and strategic priorities
The long-term trajectory of US engagement in Europe
The risks of escalation with Russia
The broader question of NATO enlargement and its implications
NATO has endured for over seven decades because it adapts. Whether it continues to do so depends on the choices made by its member states — and by the delegates in this room.