Early in 1776 two expeditions were sent from England to quell the rebellion in North America. The main force under Sir William Howe was directed against New York, where he would await the arrival of the second force that would join him after relieving Quebec. By the time the 24th Regiment arrived in Canada, Quebec had been relieved and the Americans were in full retreat to the Border.

The advance South under General Burgoyne began in June 1777 and continued for two months. The 24th Regiment, as part of the advance guard, was frequently in action. By 17th September 1777, Burgoyne's army had reached Stillwater near Saratoga, where 10,000 Americans were entrenched under General Gates.

Through lack of provisions and reinforcements, Burgoyne found his position untenable and he withdrew. The Americans soon overtook the force and Burgoyne was forced to surrender at Saratoga. The campaign ended in disaster, but the 24th has no reason to be anything but proud of the part it played in it by showing the true soldierly qualities of hard marching, initiative, self-reliance and good discipline.

In 1782 the 24th Regiment was instructed to style itself the 24th (2nd Warwickshire) Regiment of Foot, and it was under this title that the Regiment was known for the next hundred years.