include a proximity fuze warhead section, equipped with a target detection device to increase effectiveness against unmanned aerial vehicles, a new flight motor and gas generator cartridge, as well as new designs for the o-rings and integral desiccant cartridge. FIM-92K: Variant of FIM-92J designed to use a vehicle datalink rather than the missile's own seeker for targeting. ADSM: : Cancelled experiment variant fitted with a passive radar seeker, designed to be used against radar wave transmitters. The program began in FY 1983 and a final report was issued 3 December 1986. Service Falklands War The Stinger's combat debut occurred during the Falklands War () fought between the United Kingdom and Argentina. At the onset of the conflict soldiers of the British Army's Special Air Service (SAS) had been clandestinely equipped with six missiles, although they had received little instruction in their use. The sole SAS trooper who had received training on the system, and was due to train other troops, was killed in a helicopter crash on 19 May. Nonetheless, on 21 May 1982 an SAS soldier engaged and shot down an Argentine Pucará ground attack aircraft with a Stinger. On 30 May, at about 11.00 a.m., an Aérospatiale SA 330 Puma helicopter was brought down by another missile, also fired by the SAS, in the vicinity of Mount Kent. Six Argentine National Gendarmerie Special Forces troops were killed and eight more wounded. The main MANPADS used by both sides during the Falklands War was the Blowpipe missile. Soviet War in Afghanistan In late 1985, several groups, such as Free the Eagle, began arguing the CIA was not doing enough to support the Mujahideen in the Soviet–Afghan War. Michael Pillsbury, Vincent Cannistraro, and others put enormous bureaucratic pressure on the CIA to provide the Stinger to the rebels. The idea was controversial because up to that point, the CIA had been operating with the pretense that the United States was not involved in the war directly, for various reasons. All weapons supplied up to that point were non-U.S. sourced weapons, including Kalashnikov style assault rifles made in China and Egypt. The final say-so came down to President General Muhammad Zia-ul-Haq of Pakistan, through whom the CIA had to pass all of its funding and weapons to the Mujahideen. President Zia constantly had to gauge how much he could "make the pot boil" in Afghanistan without provoking a Soviet invasion of