The Régiment La Sarre was a French Army regiment active in the 18th century. It is principally known for its role in the Seven Years' War, when it served in the North American theatre.
The regiment was recruited in region of Lorraine. The second battalion of the regiment arrived in Quebec City the 3rd of June, 1756. They took part in the capture of Fort Oswego in August of that same year, and then escorted the British prisoners to Montreal after the battle. In August 1757, many soldiers of the regiment participated in the victory at Fort William Henry. The regiment then served under Louis-Joseph de Montcalm in 1758 at the Battle of Carillon. The regiment then participates in the battles of Montmorency, Plains of Abraham and Sainte-Foy.[1]