https://rusi.org/explore-our-research/publications/commentary/why-did-afghan-army-evaporate
https://www.cesifo-group.de/DocDL/ifoDD_18-01_03-09_Ochsner.pdf
https://www.brookings.edu/research/a-post-american-europe-and-the-future-of-u-s-strategy/
https://www.wilsoncenter.org/article/360deg-view-policies-needed-secure-shipping-chokepoints