Protest movements refer to collective actions organized by individuals or groups to challenge or bring attention to social, political, or economic issues. These movements can take various forms, such as marches, demonstrations, strikes, and civil disobedience. Protest movements often seek to influence policy changes, raise public awareness, or advocate for social justice and equality. They have been instrumental in shaping history and driving important societal changes. Key examples of protest movements include the civil rights movement, the anti-war movement, the labor movement, and the women's rights movement.