 Armoured cavalry differs from regular armoured units in that the main AFVs are generally lighter and faster, including light tanks, armoured cars, and scout cars.Typically motorised or mechanised infantry make up a large portion of the unit, supported by either motorised or self-propelled artillery, with possibly airmobile troops on helicopters included.Horse-mounted troops used various forms of armour for their own protection, and often added protective elements to their mount's tack.