The Ratel is a South African infantry fighting vehicle. It was the first wheeled infantry fighting vehicle to enter service worldwide and was built on a modified MAN truck chassis. The Ratel was designed in response to a South African Army specification for a light armoured vehicle suited to the demands of rapid offensives, providing maximum firepower and strategic mobility to mechanised infantry units intended to operate across the vast distances of Southern Africa. Primarily envisaged in SADF doctrine as a vehicle that could deliver mechanised infantry and supporting fire to tanks in conventional warfare, it was also anticipated that the Ratel could form the centrepiece for semi-independent battlegroups where logistics or politics precluded the use of tanks. The Ratel was a simple, economical design which helped reduce the significant logistical commitment necessary to keep heavier combat vehicles operational in undeveloped regions. It was generally regarded as an influential concept which incorporated a number of novel features, such as a mine-protected hull, an extended operating range of 1,000 kilometres, and a 20 mm autocannon fitted with what was then a unique twin-linked ammunition feed, allowing turret gunners to rapidly swap between ammunition types during combat.

An infantry fighting vehicle (IFV), also known as a mechanized infantry combat vehicle (MICV), is a type of armoured fighting vehicle used to carry infantry into battle and provide direct-fire support. The 1990 Treaty on Conventional Armed Forces in Europe defines an infantry fighting vehicle as "an armoured combat vehicle which is designed and equipped primarily to transport a combat infantry squad, and which is armed with an integral or organic cannon of at least 20 millimeters calibre and sometimes an antitank missile launcher". IFVs often serve both as the principal weapons system and as the mode of transport for a mechanized infantry unit.