South Park: Season 3, Episode 14

3 - 14: The Red Badge of Gayness (a.k.a. War)

When the boys participate in a Civil War reenactment, Cartman chooses to fight on the side of the South and take on the role of General Lee. With all the soldiers rowdy and drunk on schnapps, he tries to change Civil War history and allow the South to win. Stan and Kyle try desperately to stop Cartman's plan.