Introduction
With the ongoing conflicts across the globe—such as the Israel-Palestine crisis or the Russia-Ukraine war—the role of the International Court of Justice (ICJ) comes into focus. As the principal judicial organ of the United Nations, the ICJ is tasked with handling legal disputes between states and providing advisory opinions to UN bodies. Established under the UN Charter and the Statute of the ICJ, the Court plays a significant role in promoting global peace and legal order. Despite its prestige as the “World Court,” we rarely see it decisively intervening during wars. If it has jurisdiction over 193 UN member states, why can’t it simply order warring nations to stop? The answer lies in its structural limitations and the complex realities of global politics.
Legal Framework of the ICJ
According to the ICJ Statute, particularly Articles 34–38 and 65–68[1], the Court exercises two kinds of jurisdiction: contentious and advisory. Contentious jurisdiction applies to legal disputes between states, but only when both parties consent to it. This means that a state cannot be compelled to appear before the ICJ unless it has explicitly or implicitly agreed to the Court’s authority. In contrast, advisory jurisdiction allows the ICJ to provide non-binding legal opinions to UN organs and specialized agencies.
In cases where states do consent, ICJ rulings are binding and are expected to be respected. For instance, in the recent South Africa v. Israel case concerning alleged violations of international law in Gaza, the ICJ issued provisional measures asking Israel to prevent acts of genocide[2]. Similarly, in Ukraine v. Russian Federation, the ICJ ordered Russia to immediately suspend military operations in Ukraine[3]. These interventions, while not always enforced, indicate the ICJ’s efforts to uphold humanitarian principles and international law.
Limitations on the Enforcement Power
Despite its legal standing, the ICJ often struggles to assert itself effectively in the international arena. Its influence is constrained by several structural and political limitations:
- Voluntary Jurisdiction: ICJ’s authority is based on state consent. Nations may choose not to accept its jurisdiction, rendering the Court powerless in critical cases. This creates an imbalance in how international justice is applied.
- Lack of Enforcement Mechanism: The ICJ does not have independent enforcement powers. Its rulings must be implemented through the UN Security Council. However, enforcement often becomes a political matter, not a legal one.
- Political Challenges and UNSC Dynamics: The five permanent members of the UN Security Council (USA, UK, France, China, and Russia) can veto any enforcement action. These same countries are often parties to major global disputes, allowing them to sidestep ICJ judgments when inconvenient.
For instance, despite the ICJ’s ruling in the Ukraine conflict, Russia ignored the order and declined to participate in further proceedings. Such defiance weakens the credibility of the ICJ and highlights its limitations in real-world enforcement.
Real-World Impact: Still a Symbol of Justice?
Despite its flaws, the ICJ continues to play an important role in international law and diplomacy. While it cannot physically stop a war, it contributes to shaping international opinion and diplomatic pressure.
Take the example of the Nigeria-Cameroon dispute over the Bakassi Peninsula. Initially, Nigeria rejected the ICJ’s ruling, which ordered it to withdraw military presence from the area. However, sustained international pressure and diplomatic negotiation—facilitated by the UN—eventually led Nigeria to comply. This case demonstrates how ICJ rulings can influence outcomes through indirect mechanisms and long-term diplomacy.
Moreover, ICJ judgments contribute to the development of customary international law and reinforce legal norms. Even advisory opinions, though non-binding, are respected and often guide the behaviour of states and international bodies. In a world without the ICJ, states would have fewer legal tools to settle disputes peacefully or to hold others accountable.
Certain reforms such as limiting the influence of UNSC permanent member’s veto power in relation to ICJ decisions or developing of stricter enforcement mechanisms, have been suggested by many scholars. These reforms, though extremely crucial to improving the effectiveness of the ICJ as an international body, do not undermine its existing relevance as a cornerstone of international legal order.
Conclusion
The International Court of Justice, though limited in enforcement capabilities, remains central to the legal framework of global governance. Its influence lies in legal reasoning, moral authority, and the ability to shape international norms. While it cannot unilaterally end wars like the Russia-Ukraine conflict or halt military campaigns in Gaza, it provides a platform for legal accountability and judicial legitimacy. Rather than viewing the ICJ as a powerless institution, it should be recognized as a critical player in the broader ecosystem of international law—one that still holds the potential to impact diplomacy, global justice, and peaceful conflict resolution.
[1] Statute of the International Court of Justice: https://www.icj-cij.org/en/statute
[2] Application of the Convention on the Prevention and Punishment of the Crime of Genocide in the Gaza Strip (South Africa v. Israel), ICJ Order, January 2024.
[3] Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Ukraine v. Russian Federation), ICJ Order, March 2022.
