"We're at War"
There is no Accidental History. From soup to nuts, Poison-19 is a Military Operation. There is no "Accidental" Zeitgeist of Wartime Language. It's a massive massive Global Operation and it is ongoing.
War time terminology is endemic in the USA. It helps focus attention on what the state wants us to focus on and diverts attention away from what they want to stay undisturbed. Can't recall the exact numbers, but Gore Vidal in Perpetual War for Perpetual Peace showed that the USA has been at war somewhere, against something/somebody for over …