The work of the Underground Railroad resulted in freedom for many men, women, and children. It also helped undermine the institution of slavery, which was finally ended in the United States during the Civil War. Many slaveholders were so angry at the success of the Underground Railroad that they grew to hate the North.
The answer would be: “Free African American(s) were allowed to enlist in the Union army and Navy.
If they wanted to fight against the confederacy and the slavery supporters then they were allowed to because the Emancipation Proclamation allowed them to join the Union army.
Hope this helps. :)
Is is a question about what they help the criminal to do or whether the statement is true?
The statement is true: an accomplice does help a criminal, and does so knowingly. Together, they commit a crime or wrongdoing (in case what they do is immoral but not illegal).