Yeomen Warders
The British military (those parts of the British Armed Forces tasked with land warfare, as opposed to the naval forces) historically was divided into a number of military forces, of which the British Army (also referred to historically as the "Regular Army" and the "Regular Force") was only one. The oldest of these organisations was the Militia Force (also referred to as the "Constitutional Force"), which (in the Kingdom of England) was originally the main military defensive force (there otherwise were originally only Royal bodyguards, including the Yeomen Warders and the Yeomen of the Guard, with armies raised only temporarily for expeditions overseas), made up of civilians embodied for annual training or emergencies, and had used various schemes of compulsory service during different periods of its long existence.