Collective security refers to a concept wherein states come together to ensure mutual protection and for joint action against the aggressor. It goes by the phrase, “an attack against one is an attack against all.” Unlike military alliances, collective security aims at deterring conflicts through the combined efforts of the members and maintaining peace and international order. With the help of combined power and efforts, it seeks to discourage countries from initiating any acts of war or aggression, promoting deterrence. The states are expected to narrow national interests to the greater good of peace.
Collective Security is a pertinent concept in today’s world. There is a common perception that this concept is comparatively new; however, it traces back its origins to decades ago with World War I. World War I resulted in significant destruction worldwide. Hence, various states came together to prevent other global conflicts, giving rise to the League of Nations and the concept of collective security. It was first utilised in the creation of the League of Nations in 1919, an international organisation with the aim of preventing such a war again and also to provide a platform for countries to resolve disputes and various global issues. However, the League of Nations had its own shortcomings, such as key powers, such as the United States, not joining and developed countries dominating majorly. It failed to curb the Manchurian crisis in 1931, the Italian invasion of Ethiopia in 1935 and most importantly, World War II. This signified the fragility of collective security in front of national sovereignty and expansionism. Post World War II came the birth of the United Nations in 1945. The UN was formed to ensure that, unlike the failure of the League of Nations, there is no more scope for another world war, as the entire world was not in a position to afford the same. This was yet another step towards collective security.
The UN introduced the UN charter, which was ratified by various countries and explicitly placed policies and responsibilities on members to maintain peace and security. It gave countries the power to impose sanctions, intervene in other countries for peace and security, etc. Furthermore, the inclusion of veto power and the existence of the Power 5 countries-USA, China, UK, Russia and France, the countries that were holding the most power back then, ensured stability in the organisation. However, it also proved to be contradictory as it gave a lot of power to these five countries, giving them the opportunity to undermine and misuse the same as guardians of collective security. International organisations such as the UN are a major exercise of collective security. It provides a platform for countries to come together and ensure peace, security and effectively tackle global issues. They provide legal frameworks and mechanisms for diplomacy and the enforcement of the same. However, their effectiveness varies depending on circumstances and organisations. One of the major organisations includes the United Nations. Since World War II, the UN has tried to maintain security and has successfully curbed the rise to another world war. However, it has failed in multiple instances in curbing wars. It has contributed towards conflict prevention, humanitarian intervention and maintaining world peace. NATO, the African Union and the EU have illustrated how collective security can be implemented in a regional framework as well; for instance, AU missions in Darfur and Somalia indicate the role of such organisations in maintaining peace and security. Similarly, NATO has engaged in operations in the Balkans and Afghanistan to stop aggression. Hence, international organisations serve as a platform for collective security.
As a reader, you may wonder what the paradox is in this straightforward concept. The answer to that remains the fact that international organisations provide a platform for collective security, but do they really effectively enforce the same? Let me tell you that with a few examples.
The Gulf War occurred from 1990 to 1991 when Iraq invaded Kuwait due to major disputes between the two countries. The UNSC passed resolution 678, which allowed a coalition of forces led by the US to counter the aggression. This is an example of collective security and the successful involvement of International Organisations. On the other hand, let’s take Kosovo. In 1999, NATO intervened militarily in Kosovo without any approval from the UNSC, based on humanitarian necessity and ethnic cleansing. This resulted in undermining the authority of the UN and, hence, is considered one of the controversial interventions. Similarly, in 1994, there was a mass genocide conducted in Rwanda, which was a result of the lack of action from the UNSC to intervene and stop it. This resulted in many casualties and is one of the significant failures of the UN. The Syrian war has been going on since 2011, and there has been no action or step taken to curb the same. Ukraine has been battling with Russia since 2014, with a full-fledged war since 2021. However, no steps have been taken by the UNSC to stop the same, resulting in a failure of the UN in curbing such conflicts.
Hence, the question remains- Are international organisations truly effective in promoting collective security?
Collective security as a concept differs from the balance of power and alliances. It requires the collective effort and cooperation of all states to be successful. However, at present, international organisations, which are the primary tool implementing collective security, are failing to prevent wars. We currently have wars and conflicts still going on across the globe that have not been solved, even with UN intervention, due to various issues. The Russia-Ukraine conflict, Israel-Palestine war, South Sudan conflict, and Syrian conflict, amongst others, indicate the failure of International organisations for collective security. Furthermore, there has also been an increase in regional organisations such as NATO, the AU, etc., which have contributed both positively and negatively to collective security.
There have also been various cases and rulings of the International Court of Justice that have defined and shaped the interpretation of collective security. In Nicaragua v. United States (1986), the Court restricted the scope of collective self-defence and held that interventions must comply with strict legal tests. With recent debates on preventive forces and self-defence, the legal categories to justify force have gained more importance. With the present occurrences, collective security has proven to be a good tool for post-conflict reconstruction; however, there are still struggles to prevent ongoing wars, especially between powerful and dominating countries. It has failed to eliminate the possibility of wars from International affairs. Hence, International Organisations have failed to achieve the true aspect of collective security.
The central paradox in the entire concept of collective security is how collective security is highly dependent on the cooperation of sovereign states. At the same time, it is these very sovereign states that undermine the same, creating a paradox. The concept is universal in nature. However, the implementation has been somewhat selective and restricted to a few situations. It allows superpowers to dominate, weakening collective security. These paradoxes can be classified into the following:
- The Theoretical Paradox (Ideal v. Reality): Collective security advocates for universality, ensuring effort against aggression in an equal manner, and covers all forms of such aggression. However, in reality, the enforcement of the same is selective as observed in past situations. Forces such as power and politics highly influence the same, creating a gap between the ideal goal and real implementation.
- The Structural Paradox (Reliance on superpowers): The states that are the most powerful and are often the guides of collective security, such as the P5 countries, are in most cases the reason for such global instability or have an involvement in aggression. For example, Russia’s invasion of Ukraine, the Iraq invasion, and the South China Sea dispute, among others.
- The Legitimacy Paradox (Intervention v. Sovereignty): There is a fine line between intervention by organisations and violation of the national sovereignty of countries. There are often cases of overreach or neo-imperialism during intervention, and failure to intervene would lead to abandonment and inequality. Thus, maintaining this balance can pose a difficulty as it differs from situation to situation, making it hard for all states and organisations to act in a desirable manner towards collective security.
Thus, Collective security remains one of the most ambitious ideas in international relations, simple in theory, but far more complicated in practice. Its promise lies in the belief that no single state should face aggression alone and that the combined weight of the international community can deter conflict. History shows, however, that success depends less on the principle itself and more on the willingness of states, especially the most powerful, to set aside narrow interests. The Gulf War illustrated what collective security can achieve when consensus exists, while Rwanda, Syria, and Ukraine highlight the paralysis when political divisions dominate.
The paradox is evident: the very sovereign states that collective security relies upon to enforce order are often the ones undermining it. Without reform in decision-making, genuine commitment to universality, and a rebalancing of power within institutions like the UN, collective security risks remaining more of an ideal than a reality. Yet despite its flaws, it is still the closest framework we have to contain aggression and preserve peace. Strengthening it is not a choice but a necessity in a world where conflicts are increasingly complex, interconnected, and devastating.