The 4th Battalion, Parachute Regiment (4 PARA), is an Army Reserve unit of the British Army and is based across the United Kingdom. Originally the Battalion covered the North of England, with its headquarters located in Pudsey, West Yorkshire. Following the Options for Change review in 1993, 4 PARA amalgamated with the 15th (Scottish) Battalion of the Parachute Regiment (XV PARA), which was downsized and became 15 (Scottish) Company of 4 PARA. As part of further changes in 1999 (Strategic Defence Review), the Battalion also merged with the 10th (Volunteer) Battalion which then became 10 (London) Company.