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The United Nations and NATO frequently appear in major international news, leaving many people confused about them. The United Nations is a global cooperative platform established to prevent the tragedy of world wars from repeating. In contrast, NATO is a military defense alliance originally created to address specific threats, and it currently has 32 member countries. Understanding the origin stories of these two organizations is key to comprehending major international news.

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The painful lessons of World War II prompted profound reflection among nations worldwide. To prevent the recurrence of historical tragedies and establish a more peaceful and just world order, representatives from various countries jointly signed the [United Nations Charter] in 1945. This charter serves as the foundation of the United Nations, establishing several core principles:
Thus, the United Nations was born, becoming a global platform dedicated to maintaining global peace and promoting international cooperation.
The United Nations fulfills its responsibilities through multiple specialized agencies under its umbrella, and the work of these agencies often becomes the focus of major international news.
The work of the United Nations primarily revolves around three pillars: peace and security, development, and human rights.
First, in peacekeeping operations, the United Nations deploys peacekeeping forces (commonly known as “blue helmet troops”) to conflict zones around the world to monitor ceasefires and protect civilians. These operations are large-scale and require substantial financial support.
| Fiscal Year | Budget (USD) | Deployed Personnel |
|---|---|---|
| 2025-2026 | 5.38 billion | Approximately 70,000 |
Second, in the development sector, the United Nations Development Programme (UNDP) plays a key role. It is committed to eradicating poverty and reducing inequality, with significant project outcomes, such as helping 160 million people access basic services and supporting people in 132 countries to escape multidimensional poverty. To efficiently deliver aid funds to project sites, these agencies also utilize modern financial tools. For example, global payment platforms like Biyapay can help simplify cross-border fund transfers and management, ensuring that aid funds are quickly and securely used for designated projects.
Finally, in public health and human rights, the contributions of the World Health Organization (WHO) are particularly prominent. It not only successfully led the global eradication of smallpox but also continues to address various health crises. In 2024, WHO witnessed significant progress in several countries in eliminating neglected tropical diseases.

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Unlike the United Nations’ pursuit of global cooperation, the North Atlantic Treaty Organization (NATO) is a military alliance born to counter specific threats. Its origins and development are deeply marked by the tense confrontations of the Cold War era.
After World War II ended, the world did not usher in lasting peace but quickly fell into a confrontation between the Western bloc led by the United States and the Eastern bloc led by the Soviet Union, known as the “Cold War.” Western countries grew increasingly concerned about Soviet expansion. In 1948, two events heightened this fear:
These actions prompted Western European countries to join forces with the United States and Canada, signing the North Atlantic Treaty in 1949, formally establishing NATO. However, what truly transformed NATO from a political commitment into a powerful military entity was the outbreak of the Korean War in 1950. This war made member states realize the need for a unified military command structure. To this end, NATO established the Supreme Headquarters Allied Powers Europe (SHAPE) and appointed General Dwight D. Eisenhower as its first Supreme Commander.
The core of NATO is the principle of collective defense, clearly stipulated in Article 5 of the North Atlantic Treaty.
Article 5 stipulates that an attack against any one member state shall be considered an attack against all member states.
This clause is the cornerstone of NATO’s deterrent power. Historically, it has been invoked only once—following the September 11, 2001 terrorist attacks on the United States.
With the end of the Cold War, NATO’s functions expanded from traditional European defense to global crisis management. These operations often make headlines in major international news. For example:
In these operations, the United States plays a “leading” role with its massive defense spending, while major European members like the United Kingdom also play key roles, together forming the backbone of this transatlantic military alliance.
After understanding the origins and functions of the United Nations and NATO, we can more clearly analyze their roles in major international news. The most fundamental differences between these two organizations lie in their goals, membership qualifications, and operational methods.
The goals and “entry thresholds” of the United Nations and NATO are markedly different, determining the roles they play on the global stage.
The Inclusiveness of the United Nations The United Nations aims to be an inclusive global family. According to the United Nations Charter, membership is open to all “peace-loving” states. Countries applying to join the United Nations must meet the following basic conditions:
The application process is quite rigorous, requiring a recommendation from the United Nations Security Council and a vote by the General Assembly. The Council’s recommendation needs at least nine member states’ approval, and none of the five permanent members (China, France, Russia, the United Kingdom, and the United States) exercising veto power. Currently, the vast majority of countries in the world are United Nations members, making it the most universal international organization.
The Exclusivity of NATO In contrast, NATO is an exclusive military alliance, and its membership is not open to all countries. Countries wishing to join must meet a series of strict political, economic, and military standards. This process is usually guided by the Membership Action Plan (MAP). The plan requires applicant countries to:
It is worth noting that participation in the Membership Action Plan does not guarantee eventual admission. Existing NATO member states must unanimously agree to accept new members based on specific circumstances. Currently, countries such as Bosnia and Herzegovina, Georgia, and Ukraine have formally expressed their desire to join NATO.
At a Glance: United Nations vs. NATO
Feature United Nations (UN) NATO Core Goal Maintain global peace and security, promote international cooperation Achieve collective defense among member states Membership Scope Global, encompassing nearly all sovereign states Regional, limited to countries meeting specific standards Nature Political cooperation platform Political-military alliance
When handling international crises, the decision-making mechanisms and power boundaries of the United Nations and NATO differ significantly, which is often the root of conflicts in many major international news stories.
The United Nations: Security Council Authorization and Veto Power Military or sanction actions by the United Nations typically require authorization from the Security Council. Security Council resolutions are legally binding on all United Nations member states.
This veto mechanism was originally designed to ensure consensus among major powers and prevent the United Nations from being drawn into direct confrontations between great powers. However, in practice, it often leads to paralysis in the Security Council when facing serious crises.
NATO: Consensus Principle Unlike the United Nations, all NATO decisions are based on the “consensus” principle. This means that any decision, from political statements to military actions, must receive unanimous agreement from all 32 member states.
Cooperation, Checks and Balances, and Debates Over Legitimacy Whether NATO actions require United Nations authorization has always been a focal point of international law and political debate.
Many countries, including France, believe that as a regional organization, the legitimacy of NATO’s military actions (especially outside member states’ territories) largely depends on United Nations authorization. This reflects the complex relationship of cooperation and checks and balances between the United Nations and NATO.
In practice, the two have had successful collaborations. For example, in Bosnia, Afghanistan (ISAF mission), and Libya (2011 no-fly zone), NATO’s military actions were launched after obtaining United Nations Security Council authorization. These actions demonstrated an effective model where the United Nations provides legitimacy and NATO provides execution capability.
However, there are also controversial cases where NATO took action without explicit United Nations authorization. The most famous is the 1999 Kosovo War. At that time, anticipating that Russia would exercise its veto, NATO launched airstrikes without a Security Council resolution. This action sparked intense debate about whether humanitarian intervention can override sovereignty principles and the United Nations framework, and it continues to influence great power relations and the development of international law.
Looking back at history, the United Nations was created to achieve global cooperation, representing the ideal of multilateralism. NATO was built to counter specific threats, embodying regional collective security. Today, the United Nations is committed to addressing global issues such as climate change, while NATO focuses on responding to security challenges like terrorism and cyber attacks.
Understanding the different missions and evolutions of these two organizations is the first step to mastering the global landscape and comprehending complex international relations. It can help us transform chaotic news events into a clear framework of knowledge.
The United Nations aims to maintain global peace and cooperation. However, during the Cold War, Western countries established NATO as a military defense alliance specifically to counter particular military threats. It provided collective security commitments that the United Nations framework could not guarantee, forming a relationship of supplementation and checks and balances.
China is not a NATO member state. NATO is a regional military alliance primarily composed of North American and European countries. However, China is one of the five permanent members of the United Nations Security Council, playing a key role in global affairs related to maintaining world peace.
United Nations: Funding comes from all member states, apportioned based on factors such as each country’s economic strength and gross national income. NATO: Member states jointly bear military and administrative budgets. For example, the United States covers about 16% of NATO’s common budget, with Germany following closely.
Only the United Nations Security Council can pass legally binding resolutions. However, any permanent member can exercise veto power to block a resolution. Therefore, the United Nations’ actual enforcement capacity in practice is often limited by great power politics.
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