https://ukandeu.ac.uk/aukus-lessons-of-policy-objectives-and-secrecy/?mc_cid=b898c1471c&mc_eid=815b1928ec
http://carnegieeurope.eu/strategiceurope/75351
https://rusi.org/explore-our-research/publications/commentary/giving-raf-typhoons-ukraine-would-be-very-expensive-symbolic-gesture