The Dutch city of The Hague is home to two international courts whose names sound so similar that they are constantly mixed up. The International Criminal Court and the International Court of Justice are entirely separate institutions with different jobs, different powers, and different kinds of defendants. Confusing them leads to real misunderstanding of international news. This guide sets out clearly what each one does.
Two Courts, Two Missions
The simplest way to keep them straight is to remember who stands before each court. The International Criminal Court, or ICC, prosecutes individual people accused of the gravest crimes. The International Court of Justice, or ICJ, often called the World Court, resolves legal disputes between countries. One puts individuals on trial; the other settles disagreements among states.
This single distinction, individuals versus states, explains most of the differences between the two institutions.
The International Criminal Court
The ICC is a criminal tribunal established by a treaty to try individuals for a specific set of the most serious offenses of international concern. These generally include genocide, crimes against humanity, war crimes, and the crime of aggression. Its aim is to hold people personally accountable when national courts are unable or unwilling to do so.
Key features of the ICC include:
- It prosecutes individuals, not countries, and can issue arrest warrants and hand down prison sentences.
- It is a court of last resort, stepping in only when national justice systems fail to act genuinely.
- Its jurisdiction depends heavily on whether a country has joined its founding treaty, and not all nations have.
- It has no police force of its own and relies on member states to make arrests and enforce its orders.
That last point is a major practical limitation. Because the ICC cannot arrest anyone itself, a suspect who stays within a friendly, non-cooperating country can remain out of reach despite an outstanding warrant.
The International Court of Justice
The ICJ is a very different animal. It is the principal judicial organ of the United Nations, and it handles disputes between states, not the guilt of individuals. When two countries disagree over a border, a treaty interpretation, or maritime rights, they can bring the case to the ICJ for a ruling.
The World Court performs two main functions:
- Settling contentious cases: legal disputes that states voluntarily submit for a binding decision.
- Giving advisory opinions: non-binding legal guidance requested by authorized UN bodies on questions of international law.
Because the ICJ deals with sovereign countries, its authority rests on consent. A state generally must agree to the court's jurisdiction for a case against it to proceed, and enforcing its rulings can be difficult, since there is no global police force to compel a country to comply.
Why the Confusion Matters
Mixing up the two courts distorts how people understand international justice. A headline about a leader facing an ICC arrest warrant is about individual criminal responsibility. A headline about one country suing another at the World Court is about a legal dispute between governments. Treating them as the same thing muddies both stories.
It is also worth noting that neither court has the sweeping enforcement power that domestic courts enjoy. Both depend heavily on cooperation from states, which is why compliance is uneven and why powerful actors can sometimes avoid consequences. Their influence comes as much from legitimacy and moral weight as from raw enforcement.
Why It Matters
These two institutions represent an ongoing effort to bring the rule of law to relations between nations and to the worst crimes humans commit. They are imperfect and constrained, but they matter. Knowing that the ICC tries individuals for atrocities while the ICJ settles disputes between states lets you read international news accurately and understand what is really at stake when either court is in the headlines.