[0] https://paulross.github.io/pprune-concorde/docs/AICU_-Air_In...
[1] https://www.accenture.com/t20150523T115642__w__/us-en/_acnme...
[0] https://www.icrc.org/customary-ihl/eng/docs/v2_cha_chapter13...
[1] https://www.icrc.org/customary-ihl/eng/docs/v2_cou_us_rule42