Is NATO a force of good in the world?

Whether the North Atlantic Treaty Organization (NATO) is a "force for good" is a subject of significant global debate. Established in 1949 in the aftermath of World War II, NATO is a political and military alliance of North American and European countries.

Views on NATO’s impact vary widely depending on geopolitical perspectives, historical experiences, and political ideologies. Below is an overview of the primary arguments on both sides of the debate.

Arguments That NATO Is a Force for Good

Proponents of NATO—including its member states and many international relations scholars—view the alliance as a vital pillar of global stability, peace, and democracy. Key arguments include:

NATO’s core principle is collective defense, enshrined in Article 5, which states that an attack on one member is an attack on all. Proponents argue this mechanism has successfully prevented a major, large-scale war between superpower nations in Europe for over 75 years. During the Cold War, it deterred Soviet expansion, and in the post-Cold War era, it has continued to protect smaller European nations from potential aggression.

Supporters credit NATO with fostering an environment of security that allowed European nations to rebuild after WWII and integrate economically, leading to the creation of the European Union. By providing a security umbrella, NATO prevented the resurgence of historical rivalries and militarism among European powers.

To join NATO, aspiring members must meet specific political, economic, and military criteria, which include maintaining a democratic political system, respecting human rights, and upholding the rule of law. Proponents argue that the desire to join NATO incentivized former Eastern Bloc countries to transition into stable democracies after the collapse of the Soviet Union.

Supporters point to NATO’s actions in the Balkans during the 1990s (such as in Bosnia and Herzegovina and Kosovo) as necessary interventions that stopped ethnic cleansing and brought an end to violent civil wars. NATO has also engaged in counter-piracy operations, disaster relief, and counter-terrorism missions.

Arguments Criticizing NATO

Critics—including adversary nations like Russia and China, as well as some Western foreign policy realists, peace activists, and commentators from the Global South—argue that NATO is a destabilizing force that perpetuates conflict. Key arguments include:

A major criticism of NATO is its eastward expansion since the end of the Cold War. Critics, including some Western diplomats, argue that extending NATO membership to countries bordering Russia ignored Russia's legitimate security concerns and directly contributed to the geopolitical friction that eventually led to conflicts, such as the war in Ukraine. They argue that NATO's continued existence after the dissolution of its original rival, the Warsaw Pact, created a "security dilemma" rather than resolving one.

Critics point to several NATO military campaigns that they argue exceeded the alliance's defensive mandate and caused long-term instability:

Some critics view NATO not as a coalition of equals, but as a tool for the United States to project its military power globally and maintain Western dominance over international affairs. This perspective is particularly common in the Global South, where NATO is sometimes viewed as an instrument of neo-imperialism that prioritizes Western strategic interests over global cooperation.

Critics argue that NATO’s emphasis on military solutions and its requirement that member states spend at least 2% of their GDP on defense divert massive financial resources away from pressing global challenges, such as poverty, education, healthcare, and climate change. They argue that the alliance perpetuates a militarized mindset that prioritizes conflict preparation over diplomacy.

Conclusion

Ultimately, how one views NATO depends on what they believe maintains global order: