The 45th Regiment of Foot was a British Army line infantry regiment. Established in 1741, by 1745 the Regiment was in Gibraltar and under the command of a Colonel Warburton, while two years later it was serving in Nova Scotia during Father Le Loutre’s War, the 45th being called out on active service. The regiment participated in the Siege of Louisbourg (1758) and the Battle of the Plains of Abraham. The 45th Regiment served for twenty years in Canada. The Regiment also participated in the American Revolution, The Peninsular War, Burmese War, Kaffir War. During the Childers Reforms it was united with the 95th (Derbyshire) Regiment of Foot to form The Sherwood Foresters (Nottinghamshire and Derbyshire Regiment) .