American wars refer to the various military conflicts involving the United States, starting from the colonial period to the present day. Key conflicts include the American Revolutionary War, which led to independence from Britain, and the Civil War, fought over issues like slavery and states' rights. Other significant wars include World War I and World War II, where the U.S. played crucial roles in global outcomes. These wars have shaped American history and identity, influencing political, social, and economic landscapes. Each conflict has resulted in changes to military strategy, international relations, and domestic policies, reflecting the evolving nature of the nation and its values.