Following their defeat Battle of Quiberon Bay in 1759, the French Navy was no longer able to compete with the Royal Navy for control of European waters in the Seven Years' War.[1] In April 1761 the Royal Navy capitalised on its regional dominance to invade Belle Île, an island off Brittany, which was captured in June.[2] With the main French Atlantic fleet confined to harbour, smaller squadrons were sent to conduct raiding operations.