Deep into their run, Michelinie and Layton tweak Iron Man’s origin story and throw in the first time he met Rhodey–during the Vietnam War!
In the middle of the Vietnam jungle, Tony tried to hide his armor during his escape by wearing a trenchcoat, making this one of the most glaring examples of this tactic not working as a disguise.
Yes, Vietnam was where Tony became Iron Man. The war he was in when he made his armor has been retconned multiple times since. Seems like a harmless way to keep him timeless.