Final answer:
Harriet Tubman did not serve as a Confederate soldier during the Civil War. Instead, she was an abolitionist involved in the Underground Railroad and provided services to the Union Army as a cook, nurse, scout, and spy.
Step-by-step explanation:
During the Civil War, Harriet Tubman played many significant roles due to her commitment to the abolitionist cause and the Union's victory. However, there is one role that she did not fulfill — she did not serve as a soldier for the Confederate Army. Instead, she was known for her heroic efforts in leading hundreds of enslaved people to freedom through the Underground Railroad, serving the Union Army as a cook, nurse, scout, and spy, and advocating for abolition and women's suffrage after the war.
Tubman's actions during the war, particularly her involvement in the Underground Railroad and her services provided to the Union Army, highlight the active role African Americans played in their own emancipation and in supporting the war effort. This contrasted sharply with the Confederacy's use of slaves for manual labor and their late, desperate consideration of enlisting African American soldiers, which resulted in only a few dozen enlisting by the end of the war.