Led by Lt Col Samuel Birch, the regiment was sent to North America in 1775, arriving in Boston, then besieged by American rebels in the American Revolutionary War. It fought in the Battle of Bunker Hill, a costly British victory, in June 1775. The regiment was withdrawn to Halifax. It fought at the Battle of Long Island in August 1776 at the Battle of White Plains in October 1776 and at the Battle of Fort Washington in November 1776. It was in action again at the Battle of Forts Clinton and Montgomery in October 1777, the Battle of Crooked Billet in May 1778 and the Battle of Barren Hill later that month.