♪ >> your behavior is unacceptable. >> general ulysses s. grant... >> i resign. >> ...a disgraced soldier who becomes a general, the man who could be the victorious commander president lincoln's been searching for if he can deliver vicksburg to the union. ♪ >> when pemberton is finally willing to surrender, grant wins vicksburg. that was huge. ♪ >> on america's 87th birthday, pemberton surrenders to grant. >> there's never been a better july 4th since 1776. >> and the stars and stripes once again fly over vicksburg. >> this surrender marks the turning point of the civil war. a confederacy that's sliced down