On 7 August 1998, the US embassies in Dar es Salaam, Tanzania and Nairobi, Kenya were bombed. Afghanistan under the Taliban was mentioned as a haven for terrorists in UNSCR 1193 on 28 August 1998. In November of the same year, Usama bin Laden was indicted by the US for his involvement in the bombings. UNSCR 1214 (8 December 1998) included a long list of grievances against the Taliban in addition to its provision of sanctuary and training to terrorists, including ceasefire, resumption of negotiations, adherence to international law, and cultivation, production, and trafficking of illegal drugs.
The Taliban sanctions regime was formally separated from the Al-Qaida and associates sanctions regime in June 2011 with UNSCR 1988 (establishing a separate Taliban regime) and UNSCR 1989 (establishing a separate Al-Qaida and associates regime).
The analysis of the Al-Qaida / ISIL / Associates (AQ / ISIL / A) case is divided into the following episodes (navigatable via the numbers in the top bar):
Episode 1 (15 Oct 1999 - 19 Dec 2000)
Episode 2 (19 Dec 2000 - 11 Sep 2001)
Episode 3 (11 Sep 2001 - 17 Jun 2011)
Episode 4 (17 Jun 2011 - 24 Sep 2014)
Episode 5 (24 Sep 2014 - Present)