The arms included FIM-43 Redeye and 9K32 Strela-2 shoulder-fired, antiaircraft weapons that they initially used against Soviet helicopters. Michael Pillsbury, a Pentagon official, and Vincent Cannistraro pushed the CIA to supply the Stinger missile to the rebels. This was first supplied in 1986; Wilson's good contact with Zia was instrumental in the final go-ahead for the Stinger introduction. The first Hind helicopter was brought down later that year. The CIA eventually supplied nearly 500 Stingers (some sources claim 1,500–2,000) to the Mujahideen in Afghanistan, and 250 launchers. The impact of the Stinger on the outcome of the war is contested, nevertheless some saw it more of a "force multiplier" and a morale booster.