Tonton Streaming DuckTales (1987) S1E27 - Launchpad's Civil War

When going to Virginia for a Civil War reenactment, Launchpad encounters aged Confederate veterans who once served under his ancestor, who had lost a battle. Meanwhile, Doofus and the nephews learn that a businessman is exploiting the reenactments for financial gain. Launchpad works to avenge his family's honor by rallying the old veterans to a "rematch" of sorts against the reenactors.