Civil disobedience is when someone decides to break a law or public rule in order to make a statement or try to get something changed. It usually involves peacefully protesting, like marching or picketing, or people deliberately refusing to obey a certain law. For example, if people think a certain law is unfair or bad, they might peacefully protest to get it changed. People who take part in civil disobedience are taking a risk, because they can get arrested or fined.