During the Seven Years' War, it was engaged in the 1758 Raid on Cherbourg, the 1760 Battle of Warburg and Kirch Denkern in 1761, where they captured an entire French regiment. It also took part in the 1762 Battle of Wilhelmsthal, before returning to Ireland after the 1763 Treaty of Paris. Due to the increasing tensions that later resulted in the American Revolutionary War, the regiment was shipped to Boston, Massachusetts in May 1774. Elements of the unit were involved in the Battle of Lexington and Concord in April 1775 and the Battle of Bunker Hill in June.