On September 22, 1862, Lincoln announced that he would issue the Emancipation Proclamation. This decree freed all enslaved people in rebel territory on January 1, 1863.
the right to a writ protecting against illegal imprisonment
As a way of dealing with war opponents in the North, President Lincoln suspended habeas corpus—a legal process that helps ensure the government has a legal right to keep someone in jail.
Many African Americans were eager to fight. As a result, Congress decided to reverse past policy and allow the formation of all–African American regiments.