"Plausible denial", I believe is the CIA term:
http://www.globalresearch.ca/articles/CHO109C.html Pakistan's Intelligence Apparatus
Pakistan's ISI was used as a "go-between". The CIA covert support to the "jihad" operated indirectly through the Pakistani ISI, --i.e. the CIA did not channel its support directly to the Mujahideen. In other words, for these covert operations to be "successful", Washington was careful not to reveal the ultimate objective of the "jihad", which consisted in destroying the Soviet Union.
In the words of CIA's Milton Bearden "We didn't train Arabs". Yet according to Abdel Monam Saidali, of the Al-aram Center for Strategic Studies in Cairo, bin Laden and the "Afghan Arabs" had been imparted "with very sophisticated types of training that was allowed to them by the CIA" 6
CIA's Bearden confirmed, in this regard, that Osama bin Laden was not aware of the role he was playing on behalf of Washington. In the words of bin Laden (quoted by Beardman): "neither I, nor my brothers saw evidence of American help". 7...
...Jane Defense Weekly confirms in this regard that "half of Taliban manpower and equipment originate[d] in Pakistan under the ISI" 18
In fact, it would appear that following the Soviet withdrawal both sides in the Afghan civil war continued to receive covert support through Pakistan's ISI. 19
In other words, backed by Pakistan's military intelligence (ISI) which in turn was controlled by the CIA, the Taliban Islamic State was largely serving American geopolitical interests. The Golden Crescent drug trade was also being used to finance and equip the Bosnian Muslim Army (starting in the early 1990s) and the Kosovo Liberation Army (KLA). In last few months there is evidence that Mujahideen mercenaries are fighting in the ranks of KLA-NLA terrorists in their assaults into Macedonia."