Watch Full Movie Online. On April 12th, 1864, at an insignificant little fort, several hundred black Union soldiers fought a hopeless battle against a Confederate general who was destined to become the first Grand Wizard of the KKK. This battle had a domino effect, trickling down the long road of history. Today, it is just a footnote in most history books; however, no other event of the Civil War has had such a profound impact on the twentieth century, especially on American culture.