What were some of the reasons the blacks wanted to fight in the movie Glory?

In the movie "Glory," Black soldiers, particularly the 54th Massachusetts Infantry Regiment, were motivated to fight for several reasons. They sought to prove their bravery and worthiness as soldiers, countering the prevalent racial stereotypes of the time. Additionally, many were driven by a desire for freedom and the hope that their service would contribute to the abolition of slavery and the advancement of civil rights. Fighting in the war also represented a chance to gain respect and equality in a society that had long marginalized them.