The International Court of Justice ("ICJ") is like a big group of judges who decide if countries are playing fair with each other. Just like you might have grown-ups who help you and your friends decide what games to play and what rules to follow, the ICJ helps countries around the world settle their disputes.
Sometimes when countries disagree with each other, they might try to solve the problem on their own. But if they can't, they might decide to go to the ICJ to get help.
When a country takes a problem to the ICJ, they agree to follow the rules and decisions made by the judges. This means they promise to listen and respect what the judges say.
The judges in the ICJ look at things like laws, agreements, and previous decisions made by the court before making their own decision. They work to make decisions that are fair and balanced so that each country is treated equally.
When the ICJ makes a decision, it is final and both countries have to follow it. This helps keep countries peaceful together and encourages everyone to play nice on the world stage.