Is UN Failing to Deal with Wars, Global Crisis?

The United Nations (UN) was created in the aftermath of the greatest failure of collective security in the modern history: The inability of the League of Nations (LoN) to prevent the Second World War (WWII). More than eight decades later, the question is no longer simply whether the UN has succeeded or failed. 

The deeper question is more difficult: Is the institutional structure created in 1945 capable of dealing with wars, rivalries and global crises of the twenty-first century?

Sudan. Ukraine. The Middle East.

These conflicts have exposed a persistent gap between international concern and international enforcement. Yet any serious assessment must begin with an important distinction. The UN has not prevented every war. It has not always been able to stop mass atrocities. It has not consistently been able to secure political settlements when the parties to a conflict-or the major powers behind them-are unwilling to compromise.

But it would be equally inaccurate to conclude that the UN has achieved nothing. The UN has provided humanitarian assistance, supported peacekeeping operations, established international standards and maintained diplomatic channels between the states that might otherwise have had fewer opportunities to communicate.

Its agencies and programmes have worked across areas ranging from health and food security to refugees, children, developments and disaster responses. The real problem lies somewhere more fundamental. It lies in the gap between what the international system can discuss and what it can enforce. And at the centre of that gap stands the Security Council (SC). Five are permanent: China, France, Russia, United Kingdom and United States. These five permanent members possess veto power over substantive SC resolutions.

This creates a structural asymmetry at the heart of the international security system. The UNGA has 193 member states, with each state formally receiving one vote. The SC, by contrast, has only 15 members, with five holding permanent seats and veto power. The UNGA can debate, recommend and generate political pressure.

The SC has primary responsibility for international peace and security and can adopt decisions carrying stronger legal consequences under the UN Charter. But when a permanent member exercises its veto, the substantive SC action can be blocked. The result is a paradox. The International Community (IC) may be capable of reaching broad agreement about a crisis while remaining incapable of reaching agreement about what to do about it.

The war in Ukraine illustrates this problem most clearly. Russia, itself a permanent member of the SC, has been able to use its veto to block certain substantive SC resolutions concerning the conflict. The Middle East has time and again produced similar controversies, with disagreements among permanent members affecting the Council's ability to act. The issue is not simply that one country possesses a veto.

The deeper issue is that the architecture of international security remains rooted in a geopolitical settlement created in 1945. The world of 2026 is profoundly different from the world of 1945. The number of sovereign states has multiplied. Economic power has shifted. New regional powers have emerged. Global institutions have expanded. Threats have evolved from conventional interstate wars to include civil wars, terrorism, cyber conflict, climate-related insecurity, pandemics and transnational humanitarian crises.

Yet the fundamental structure of the SC has changed comparatively little. This raises one of the central questions of the modern international system: Can an institution designed around the geopolitical balance of 1945 adequately represent the geopolitical realities of 2026?

The comparison with the LoN is unavoidable. But it must be made carefully. The LoN ultimately disappeared after its inability to prevent the WWII exposed the weakness of its collective-security system. The UN has survived for more than eight decades. That survival matters. But the survival alone is not proof of effectiveness.
Equally, paralysis in particular crises is not proof that the entire organisation is useless. The historical record is considerably more complicated. The UN has helped develop peacekeeping mechanisms, humanitarian programmes and international legal and political standards.

Its institutions have provided assistance to millions of people affected by war, displacement, hunger, disease and natural disasters. Its UNGA has also given smaller and less powerful states a permanent forum in which they can place their positions on the international record. These achievements coexist with some of the international system's most serious failures. Rwanda in 1994 and Srebrenica in 1995 remain among the gravest examples of the IC’s inability to prevent mass atrocities.

More recent conflicts have demonstrated another limitation: Collective action becomes extremely difficult when major powers disagree, when the SC members have conflicting interests, or when governments refuse to cooperate.

This leads to a crucial distinction. The UN is not a world government. It cannot simply order every government to stop fighting. It does not possess a global police force that automatically enforces every UNGA resolution.

Its effectiveness depends heavily on the willingness of states-particularly powerful states-to implement, finance and enforce collective decisions. That dependence is both the UN's strength and its weakness. It is a strength because the organisation exists through the participation of sovereign states. It provides a framework in which governments can negotiate, coordinate and establish common rules without surrendering their sovereignty to a world government. But it is also a weakness because the same states that created the system are the states whose political interests can limit what that system is able to do. 

The UN provides a table around which states can negotiate. But the table does not guarantee agreement. It provides rules. But rules do not automatically guarantee enforcement. It creates international legitimacy. But the legitimacy does not always translate into immediate action. That may be the most important lesson of the comparison with the LoN. The question is not simply whether the UN has failed. Nor is the answer simply that it has succeeded.

The more revealing question is whether an international organisation can remain effective when global problems increasingly cross national borders, while political authority remains overwhelmingly national. That is the central tension. The world increasingly requires collective action.

But the collective action still depends on sovereign states agreeing to act. The UN sits directly between these two realities. And that is why the most important question for the future may not be whether the UN should survive. 

It is whether the international system created in 1945 can adapt to the world that exists in 2026.