Tyson, Ann Scott «A Sober Assessment of Afghanistan — washingtonpost.com». The Washington Post, 15-06-2008 [Consulta: 13 març 2012]. «There are an estimated 5,000 to 20,000 Taliban fighters in Afghanistan, plus an estimated 1,000 each for the insurgent groups led by Siraj Haqqani and Gulbuddin Hekmatyar, according to ISAF intelligence.»
