From early 1747 to the end of 1748, it was in Flanders but otherwise was stationed in Ireland until 1756. In 1749, after Oglethorpe's Regiment of Foot was disbanded and the Black Watch was re-numbered the 42nd and in 1751 formally titled the 42nd (Highland) Regiment of Foot. On the outbreak of the Seven Years' War in 1756, it was sent to North America. The Americas During the French and Indian War, at the first battle of Ticonderoga, also known as the Battle of Carillon, the regiment lost over half of its men in the assault in July 1758. At that time they were already officially recognized as a Royal regiment. The second battalion of the Black Watch was sent to the Caribbean but after the losses of Ticonderoga, the two battalions were consolidated in New York. The regiment was present at the second battle of Ticonderoga in July 1759 and the surrender of Montreal in September 1760. They were sent to the West Indies again where they saw action at Havana, Martinique and Guadeloupe. Between 1758 and 1767 the 42nd served in America. In August 1763, the regiment fought in the Battle of Bushy Run while trying to relieve Fort Pitt, modern Pittsburgh, during Pontiac's Rebellion. The regiment went to Cork, Ireland in 1767 and returned to Scotland in 1775. During the American Revolutionary War, the regiment was involved in the defeat of George Washington in the Battle of Long Island in August 1776 and saw combat at the Battle of Harlem Heights in September 1776, the Battle of Fort Washington in November 1776 and the Battle of Piscataway in February 1777. It also fought at the Battle of Brandywine (light infantry and grenadier companies only) in September 1777, the Battle of Germantown (Light Company only) in October 1777 and the Battle of Monmouth in June 1778 as well as the siege of Charleston in spring 1780. In September 1778 a detachment from the regiment raided Fairhaven, Massachusetts, inflicting severe damage on the town's shipping industry. Following the end of the war in America, the 42nd were posted to Nova Scotia in 1783, serving there until 1786 when they moved north to Cape Breton Island. The regiment returned to England in 1789. Landing at Portsmouth, they marched to Tynemouth in Northumberland and in the spring of 1790 marched on to Glasgow, before taking up residence at Edinburgh Castle in