Civil disobedience involves the open refusal to obey certain laws or commands from a government or occupying power. It is a non-violent way to fight for change, as shown by leaders like Mahatma Gandhi and activists like Rosa Parks who fought segregation laws in the United States through peaceful protest and civil disobedience. Figures like Henry David Thoreau and those who broke down the Berlin Wall also demonstrated how civil disobedience can be used to enact political and social change without violence.