1. Al Jazeera (2021) Timeline: how September 11, 2001 led to US’s longest war. https://www.aljazeera.com/news/2021/9/6/timeline-how-september-11-2001-led-to-uss-longest-war. Accessed 23 April 2022
2. American Special Ops (n.d.) Jawbreaker—CIA Special Activities Division. http://www.americanspecialops.com/cia-special-operations/jawbreaker/. Accessed 30 May 2022
3. Arnold A (1985) Afghanistan: the Soviet invasion in perspective. Hoover Press, Stanford
4. Baker P (2019) Why did Soviets invade Afghanistan? documents offer history lesson for Trump. The New York Times. https://www.nytimes.com/2019/01/29/us/politics/afghanistan-trump-soviet-union.html. Accessed 17 May 2022
5. Barfield TJ (2010) Afghanistan: a cultural and political history. Princeton University Press, Princeton