In this show, Andrew Sola and his guest, Prof. Steven Durand, discuss different theoretical approaches to understanding US foreign policy and international security 20 years after 9/11. Topics include (1) realpolitik or neo-realism: the view that the world is an anarchical and amoral competition among nations; (2) Graham Allison’s critique of the assumption that governments make rational decisions; (3) James Dobbins’ analysis of successful and unsuccessful approaches to nation building. Next, they discuss the war in Afghanistan, including (4) the role of humanitarian intervention in US foreign policy; and (5) the influence of domestic politics on foreign policy. The show concludes with (6) an assessment of President Biden’s decision to end the war in Afghanistan as well as (7) a discussion of the Biden Doctrine.