An armoured personnel carrier is a type of armoured fighting vehicle designed to transport infantry to the battlefield.
An armoured fighting vehicle is a combat vehicle, protected by strong armour and generally armed with weapons, which combines operational mobility, tactical offensive, and defensive capabilities.
Infantry is the general branch of an army that engages in military combat on foot.
M113 Armored Personnel Carriers in Vietnam Jungle by okrajoe
APCs are colloquially referred to as 'battle taxis' or 'battle buses', among other things.
M113 Armored Personnel Carrier | Military-Today.com by Military-Today.com
Armoured personnel carriers are distinguished from infantry fighting vehicles by the weaponry they carry.
An infantry fighting vehicle, or mechanized infantry combat vehicle, is a type of armoured fighting vehicle used to carry infantry into battle and provide direct fire support.
The Treaty on Conventional Armed Forces in Europe defines them as "an armoured combat vehicle which is designed and equipped to transport a combat infantry squad and which, as a rule, is armed with an integral or organic weapon of less than 20 millimetres calibre."
The original Treaty on Conventional Armed Forces in Europe was negotiated and concluded during the last years of the Cold War and established comprehensive limits on key categories of conventional military equipment in Europe and mandated the destruction of excess weaponry.
By convention, they are not intended to take part in direct-fire battle, but are armed for self-defence and armoured to provide protection from shrapnel and small arms fire.
In international arms control, small arms include revolvers and pistols, rifles and carbines, assault rifles, submachine guns and light machine guns.
Examples include the American M113, the French VAB, the Dutch-German GTK Boxer and the Soviet BTR.