[1] It embarked for North America in January 1755 for service in the French and Indian War[3] and took part in the Battle of the Monongahela[4] where Colonel Sir Peter Halkett was killed while commanding the regiment.[1] The regiment was sent to the West Indies in 1795 for service in the French Revolutionary Wars and took part in the recapture of Martinique and Saint Lucia which, following the peace treaty of 1763, had been returned to France, and the attack on Guadeloupe.It formed part of an army which advanced up the River Irrawaddy to the Kingdom of Ava[34] and then, under the command of Lieutenant Colonel John Shelton, captured the city of Arakan in March 1825.[37] Viewed as one of the worst British military disasters of the 19th century, by breaking the myth of the army's invincibility it also allegedly facilitated the 1857 Indian Rebellion.[38] The regiment was engaged in a continuous running battle in thick snow, suffering heavy casualties, among them Captain Thomas Leighton, killed on 10 January and commemorated in All Saints' Church, Northallerton.[39] On the evening of the 12th, a small group on horseback broke out in an attempt to reach the British garrison at Jalalabad but only Surgeon William Brydon managed to do so, arriving late on the afternoon of the next day.[41] The only survivors were a few wounded privates and Captain Thomas Souter, who had wrapped the regimental colours around his waist; the attackers assumed this meant he was a high-ranking officer.