Projectile guidance technology has already been used since 1994 in 120 mm mortars, with the IR homing Bofors/Saab Strix. This weapon can engage targets at a range of 7 km, operates in an autonomous heat-seeking mode which can intelligibly recognize targets and discriminate targets among decoys and burning targets. Strix has been in service with the Swedish Army since 1994 and also has been ordered by the Swiss Army. It is optimized as an anti-armor weapon, defeating targets with top-attack. (less info)