How did African Americans support the war effort in the civil war?

African Americans played a crucial role in supporting the Civil War effort by serving in the Union Army and Navy, with approximately 180,000 enlisted as soldiers. They also contributed as laborers, spies, and guides, providing essential support to Union forces. Additionally, many freed enslaved individuals escaped to Union lines, bolstering the workforce and helping to undermine the Confederacy. Their participation not only aided the Union cause but also advanced the struggle for freedom and civil rights.