The government taking “Havana syndrome” seriously is in part a result of having “learned the lessons” of “Gulf War Syndrome” which honestly at the time felt like a reenactment of Vietnam Agent Orange stuff

(Another connection? Paraquat! The government sponsored aerial spraying of Mexican marijuana fields with defoliant, which then caused marijuana-smoker paranoia about exposure and an industry of gimcrack woo to detect/cleanse it [sprayed plants did not flower and get harvested, defoliant killed them])