What were methods African-Americans fought for their freedom during the Civil War?

During the Civil War, African-Americans fought for their freedom through various methods, including enlistment in the Union Army, with nearly 180,000 African-American soldiers serving and proving their commitment to the cause. They also engaged in acts of resistance, such as escaping from plantations to join Union forces, and participating in the Underground Railroad. Additionally, many African-Americans contributed to the war effort by providing intelligence and support to Union troops, while abolitionist movements and advocacy for emancipation helped galvanize public support for their liberation.