https://www.youtube.com/watch?v=egscW6IAMIQ , https://www.youtube.com/@TheInfographicsShow/videos
https://en.wikipedia.org/wiki/United_States_Armed_Forces#Combatant_commands
https://en.wikipedia.org/wiki/Unified_combatant_command#List_of_combatant_commands
https://en.wikipedia.org/wiki/U.S._nuclear_weapons_in_Japan#Nuclear_sharing
Defence and war has been a huge business for many countries throughout the decades.
https://en.wikipedia.org/wiki/List_of_countries_by_number_of_military_and_paramilitary_personnel
