The Civil War Amendments, comprising the 13th, 14th, and 15th Amendments to the United States Constitution, were pivotal in reshaping American society post-Civil War by abolishing slavery, granting citizenship and equal protection under the law to all persons born or naturalized in the U.S., and prohibiting the denial of voting rights based on race, color, or previous condition of servitude. These amendments laid the foundational legal framework for civil rights and equality in the United States, though their full realization has been a continuous struggle.