Doumerc's division also fought at the Second Battle of Polotsk on 18–20 October 1812. The 23,000 Franco-Allies fought 40,000 Russians to a draw, but the survivors were so few that they had to retreat. On 26 November, the 3rd Cuirassier Division fought at the Battle of Berezina. That day Marshal Nicolas Oudinot with 11,000 infantry and Doumerc's cuirassiers assumed a position covering the key bridges over which Napoleon's army was escaping. On 27 November, Oudinot's troops repelled enemy attacks, but on the following day the Russians were close to breaking through. Doumerc's horsemen made a climactic charge and crushed the Russians with heavy losses; after that, they declined to close with the French. Berckheim's youngest brother Philippe-Gustave became a captain of cuirassiers and died during the 1812 campaign.