Cavalry Barracks is a British Army installation located on Hounslow Heath in Hounslow, west of London. It was one of 40 such barracks built around London to guard against possible invasion by France in the late 18th and early 19th centuries. It is the location for the line infantry battalion that is posted for public duties in London, currently (as of July 2005) the 1st Battalion, Worcestershire and Sherwood Foresters Regiment (29th/45th Foot).British Army Source: [wikipedia: cavalry barracks, hounslow]