DRC has taken Rwanda to the world court over genocide again. A law scholar explains what’s different this time

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The Democratic Republic of Congo (DRC) filed a lawsuit against Rwanda at the International Court of Justice at the end of June 2026. The 60-page complaint alleges acts of genocide and other atrocity crimes by Rwandan forces and their intermediaries dating from 1996 to the present day.

The DRC has twice before brought similar cases against Rwanda at this court. Both failed on questions of jurisdiction. So, what explains yet another case against Rwanda? Kerstin Bree Carlson, a scholar of international justice and author of a book on international law in Africa, examines this history and what's behind the DRC's confidence in its latest push.

What did the DRC's previous cases involve?

The DRC has twice tried to bring Rwanda before the International Court of Justice in relation to violence carried out or backed by Rwanda on its soil. It was unsuccessful both times.

In 1999, the DRC brought claims against Rwanda, Burundi and Uganda before the court over the armed invasion of its territory. It sought reparations for armed aggression and intentional acts of destruction and looting.

It later dropped its claims against Rwanda and Burundi because neither country had consented to the court's jurisdiction.

The case against Uganda went ahead, and in 2005 the court ruled in the DRC's favour. It found that Uganda was responsible for acts of violence in the country. In 2022, the court ordered Uganda to pay US$325 million in reparations, marking a significant victory for the DRC. Kampala paid the first instalment of US$65 million that year.

In 2002, the DRC resubmitted claims against Rwanda.

The DRC invoked eight international treaties, including the Genocide Convention. This is a UN treaty that entered into force in 1951 and establishes genocide as an international crime.

The International Court of Justice dismissed the DRC's case on jurisdictional grounds, which drew criticism. The court said it lacked the authority to hear the dispute because Rwanda had entered a “reservation” when it joined the Genocide Convention, rejecting the court's jurisdiction under the treaty. In the 2006 ruling, a majority of International Court of Justice judges recognised the validity of this reservation.

What has happened in the past 20 years that might change the outcome?

First, in 2008 Rwanda withdrew its reservation to International Court of Justice jurisdiction under the Genocide Convention and the Convention on the Elimination of all forms of Racial Discrimination (which came into force in 1969). That means that the jurisdictional hurdle relating to Rwanda's consent is resolved.

The DRC has invoked both these treaties in its current submission to the court.

Second, in 2008 Rwanda became a party to the Convention Against Torture (which came into force in 1987). Claims made under this UN treaty do not need to meet the same rigorous “intent” standard that genocide claims do. Further, the court's jurisprudence is well established under the torture convention. For example, claims under this treaty played a critical role in efforts to bring Chad's former president Hissène Habré to justice.

The DRC has invoked this history in its submission.

Third, international law has evolved. Recent cases like The Gambia's suit againt Myanmar (2019) and South Africa's case against Israel (2023) have expanded the Genocide Convention's reach.

Together, these factors suggest that the DRC's third attempt may have a stronger chance of clearing the jurisdictional hurdle. However, whether this would eventually lead to a judgment against Rwanda is much harder to predict.

Why has the DRC turned to international law?

International law, the law of nations, creates all nations as equals. The International Court of Justice is the oldest, most established global arbiter of disputes between them.

There are two principles of international law that play out in this case.

First, states are generally bound only by obligations they have explicitly accepted. This includes agreeing to the jurisdiction of the court. Second, international courts have no police force or other means of enforcing their judgments. It is up to states themselves to comply with court rulings. This compliance includes a duty on other states not to recognise as lawful situations created through serious breaches of international law.

Although the court cannot compel states to act, its opinions matter. They represent the most authoritative statements of international legal norms. In other words, International Court of Justice judgments represent the clearest statements we have regarding how international legal principles apply in practice.

Recognising international law's persuasive power is key to understanding why the DRC has repeatedly turned to the International Court of Justice and other international courts to seek rulings against Rwanda and its proxies. These include the International Criminal Court and the African Court on Human and People's Rights. International lawfare represents a principled battle for recognition and legitimacy.

Why does the case matter?

The DRC's creative legal attempts to bring Rwanda to justice in relation to its engagement in and support of armed conflict in the DRC over the past several decades are efforts to invalidate violent incursions on its soil. It also seeks to reassert its sovereignty by having Rwandan-backed violence recognised as illegal by international law's apex court.

As I have argued before and in my book examining international law in Africa, the power of international law resides in states' agreements to use it in place of violent conflagration, and to be bound by it.

Rwanda challenges these standards in both regards. Credible allegations of Rwandan-backed massacres in the DRC date from 1996 through to the present day. Despite being the recipient of significant international legal investment, Rwanda resists participating as a good international citizen. So far, neither Rwanda nor its allies are addressing or redressing its behaviour.

By contrast, the DRC is expanding international law's promise and potential by applying it as intended. International law derives its power chiefly from the expectations it creates.

The DRC is not blameless in the three decades of violence its submission describes. But by framing that violence through the lens of international law, the country helps legitimise alternatives to violence.

Kerstin Bree Carlson receives funding from Independent Research Fund Denmark.

By Kerstin Bree Carlson, Associate Professor International Law, Roskilde University