http://www.rand.org/content/dam/rand/pubs/research_reports/RR1700/RR1786z1/RAND_RR1786z1.pdf
https://www.ipg-journal.de/rubriken/aussen-und-sicherheitspolitik/artikel/die-maer-vom-trumpschen-rachefeldzug-4437/
https://www.foreignaffairs.com/articles/afghanistan/2021-08-13/osama-bin-ladens-911-catastrophic-success?utm_medium=promo_email&utm_source=pre_release&utm_campaign=mktg_prospects_al_qaeda_lahoud&utm_content=20210814&utm_term=promo-email-prospects
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/16/1603.htm