The Oxfordshire and Buckinghamshire Light Infantry was a light infantry regiment of the British Army that existed from 1881 until 1958, serving in the Second Boer War, World War I and World War II. The regiment was formed as a consequence of the 1881 Childers Reforms, a continuation of the Cardwell Reforms, by the amalgamation of the 43rd (Monmouthshire) Regiment of Foot (Light Infantry) and the 52nd (Oxfordshire) Regiment of Foot (Light Infantry), forming the 1st and 2nd Battalions of the Oxfordshire Light Infantry on 1 July 1881. In 1908, as part of the Haldane Reforms, the regiment's title was altered to become the Oxfordshire and Buckinghamshire Light Infantry, commonly shortened to the Ox and Bucks.