Cap Badge - Corps of Military Police (King George V 1926 to 1935) The Royal Military Police (RMP) is the corps of the British Army responsible for the policing of service personnel, and for providing a military police presence both in the UK and while service personnel are deployed overseas on operations and exercises. Members of the RMP are often known as 'Red Caps' because of their ubiquitous scarlet-topped peaked caps, or scarlet coloured red berets. The RMP's origins can be traced back to the 13th Century but it was not until 1877 that a regular corps of military police was formed, with the creation of the Military Mounted Police (MMP). This was followed by the Military Foot Police (MFP) in 1885. The Military Mounted Police first engaged in combat in 1882 at the Battle of Tel el-Kebir. Although technically two independent corps, the two effectively functioned as a single organisation. In 1926, they were fully amalgamated to form the Corps of Military Police (CMP). In recognition of their service in the Second World War, they became the Corps of Royal Military Police (RMP) on 28 November 1946 under Army Order 167.