https://www.history.com/topics/vietnam-war/vietnam-war-history
https://www.britannica.com/event/Vietnam-War
https://www.businessinsider.com/17-wild-facts-about-the-vietnam-war-2015-7
https://www.cracked.com/personal-experiences-1562-8-facts-about-vietnam-war-i-learned-as-viet-cong.html?ext=.html
https://www.cnn.com/2013/07/01/world/vietnam-war-fast-facts/index.html
https://owlcation.com/humanities/Facts-on-the-Vietnam-War
https://www.history.com/topics/vietnam-war/vietnam-war-timeline
https://en.wikipedia.org/wiki/Agent_Orange#Health_effects
https://en.wikipedia.org/wiki/List_of_aircraft_losses_of_the_Vietnam_War