APC to IFV It was the Soviets who introduced the first large-scale employment of the infantry fighting vehicle (IFV). From the outset, early APCs such as half-tracks carried a variety of weapons, usually machine guns, to enable their occupants to at least defend themselves against potential attackers; these measures were primarily defensive. In general the early APCs had to depend on supporting arms such as tanks and artillery to cover their movements. Fire support by APCs for other APCs was very limited. Even with the 1950s generation of APCs little was changed. What weapons were carried were usually served by crew or infantry squad members having to expose themselves to incoming fire and artillery bursts through an open hatch or cupola to operate whatever weapon was involved. But once that weapon was protected within a turret the potential of what was to become the IFV was realised. The gun turret was not the only firepower amplifier on the IFV Even before viable gun turrets appeared anti-tank guided weapons (ATGW) or recoilless rifles were often fired from open APC roof hatches. The missiles involved were usually those normally carried by the infantry passengers but with the advent of the IFV more powerful and longer range ATGWs appeared, a typical example from the West being the American wire-guided TOW series. On the IFV the launchers for such ATGWs were often specialised turrets but the latest generation of IFVs now have their ATGW launchers as adjuncts to gun turrets to provide greater variety of support firepower for the
infantry - the specialised ATGW turrets have instead converted some IFV variants into specialised tank killers. Thus by the late 1970s the APC had become the father to the IFV But even before then, during the 1960s, a series of projects in which APCs assumed combat turrets with cannon-type weapons had appeared. The old APC thus became less of a personnel carrier and more of a combat vehicle capable of producing its own fire support on the move and of operating in unison with other similarly-armed vehicles to attack or defend objectives. The number of combat roles for the old infantry carriers began to expand. From being a simple armoured 'battlefield taxi' the personnel carrier began to assume patrolling, surveillance and reconnaissance roles plus, as it carried a viable weapon, the ability to engage similar enemy vehicles and remove them and their precious cargoes from the battlefield. Protection for the occupants and crew expanded to incorporate collective chemical and nuclear warfare protection systems while more consideration was given to protecting vehicle occupants against land mine detonations. The relatively low cost APC had become the far more costly IFV
Opposite: British troops training on a Warrior IFV.