This is a personal and detailed account of the life of an Irish soldier serving with the British Army during the Napoleonic Wars. Joining the 43rd Light Infantry Regiment at the age of 17, the anonymous author soon saw action at Copenhagen in 1807. Following the successful conclusion of this expedition, he served in Spain and Portugal under Sir John Moore and the Duke of Wellington during the Peninsular War. Gravely wounded at the Battle of Badajoz in 1812, he retired from the army and converted from Roman Catholicism to Methodism. Full of insightful comments about the life of an ordinary soldier during the early 19th century, he also discourses on his view of religion and the Roman Catholic Church.