The three battalions had been dispersed to various locations with the abdication of Napoleon and the total French defeat in 1814. The majority of the regiment's companies were sent back to England for rest and refitting while several companies had been retained in north-east France at Leuze, Aisne under General Thomas Graham. Five companies of the 3rd battalion were in North America, having been sent in late 1814 to participate in the final stages of the War of 1812. With the return of Napoleon from exile, all of the companies in England crossed the channel and landed in Belgium in May 1815, joining with those already present, so that the entire regiment, bar the five companies still in America, became part of Wellington's Anglo-Dutch army. The first battalion went on to fight at the Battle of Quatre Bras on 16 June 1815, while all three battalions would fight at the Battle of Waterloo on 18 June 1815.