Infantry fighting vehicle

An infantry fighting vehicle (IFV), also known as a mechanized infantry combat vehicle (MICV), is a type of armoured fighting vehicle designed both to transport infantry into battle and to provide direct fire support, combining the function of an armoured personnel carrier (APC) with that of an assault gun/light tank. 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".

Source: Wikipedia — Infantry fighting vehicle (CC BY-SA 4.0)