 Many Western military analysts credit the Stinger with a kill ratio of about 70% and with responsibility for most of the over 350 Soviet or Afghan government aircraft and helicopters downed in the last two years of the war.Some military analysts considered it a "game changer" coined the term "Stinger effect" to describe it.Wilson claimed that before the Stinger the Mujahideen never won a set piece battle with the Soviets but after it was introduced, the Mujahideen never again lost one.