The British Colonial Auxiliary Forces referred to the various military units of Britain's colonial empire which were not considered part of the British military proper. Though the first colonial units established in the British Empire were militia formations in Britain's American colonies, by the Victorian era these units were modelled after the regular armed forces of Britain and consisted of professional soldiers. They supplied a reserve force either to be called up in war time to reinforce regular British Army garrisons for home defence, or in some cases were entirely responsible for home defence. Many units, however, took part in active campaigns outside of the role of home defence in various conflicts the British Empire was involved in, including the two world wars. Some of the reserve colonial units, especially in the strategically-important imperial fortress colonies (consisting of Halifax, Gibraltar, Bermuda and Malta), were funded by the War Department out of Army Funds and considered part of the British Army (by example, the Bermuda Militia Artillery was grouped with the Royal Artillery and the Bermuda Volunteer Engineers with the Royal Engineers in the official Army Lists, which also listed the Bermuda Volunteer Rifle Corps and Bermuda Militia Infantry officers as part of the British Army, whereas most colonial units were listed separately or did not appear at all), whereas others that did not receive Army Funds were considered auxiliaries (British military units, but not part of the British Army). This had originally been true of various other military forces in the United Kingdom before the mid-Nineteenth Century, following which the Board of Ordnance was abolished and its military corps (the Royal Artillery, Royal Engineers, and Royal Sappers and Miners) and previously-civilian Commissariat, stores and transport departments were all absorbed by the British Army and the Militia, Yeomanry and Volunteer Forces were more closely integrated with the British Army through a succession of military reforms. Many colonial units started out as auxiliaries and later became regular units and forerunners to the current militaries of those colonies which have become politically independent. While most of the units listed here were army units, colonial marines were raised at various times, as were colonial naval and air force reserve units. Today, only four British Overseas Territories regiments remain (not including cadet corps): the Royal Bermuda Regiment; the Royal Gibraltar Regiment; the Falkland Islands Defence Force; and the Royal Montserrat Defence Force. The British Government