Giraldo, Jeanne K. (2007). Terrorism Financing and State Responses: A Comparative Perspective. Stanford University Press. p. 96. ISBN978-0-8047-5566-5. https://archive.org/details/terrorismfinanci00haro. "Pakistan provided military support, including arms, ammunition, fuel, andExtremist organizations serving as proxies of the government of Pakistan are attacking Afghan troops and civilians as well as US soldiers." Mullen continued: "For example, we believe the Haqqani Network—which has long enjoyed the support and protection of the Pakistani government and is, in many ways, a strategic arm of Pakistan's Inter-Services Intelligence Agency—is responsible military advisers, to the Taliban through its Directorate for Inter-Services Intelligence (ISI)"
“Pakistan's support of the Taliban”. Human Rights Watch. https://www.hrw.org/reports/2001/afghan2/Afghan0701-02.htm. "Of all the foreign powers involved in efforts to sustain and manipulate the ongoing fighting [in Afghanistan], Pakistan is distinguished both by the sweep of its objectives and the scale of its efforts, which include soliciting funding for the Taliban, bankrolling Taliban operations, providing diplomatic support as the Taliban's virtual emissaries abroad, arranging training for Taliban fighters, recruiting skilled and unskilled manpower to serve in Taliban armies, planning and directing offensives, providing and facilitating shipments of ammunition and fuel, and ... directly providing combat support."
Joscelyn (2011年9月22日). “Admiral Mullen: Pakistani ISI sponsoring Haqqani attacks”. The Long War Journal. 2011年12月1日閲覧。 “During a Senate Armed Services Committee hearing today, Admiral Michael Mullen, the Chairman of the Joint Chiefs of Staff, highlighted the Pakistani Inter-Services Intelligence Agency's role in sponsoring the Haqqani Network – including attacks on American forces in Afghanistan. "The fact remains that the Quetta Shura [Taliban] and the Haqqani Network operate from Pakistan with impunity," Mullen said in his written testimony. " for the September 13th attacks against the U.S. Embassy in Kabul."”