On the DEWLine 2.0: Dwight Williams

...the one that almost all the Marvel characters who had military backstories not tied to World War II specifically, but to conflicts that happened afterwards? Korea? (Professor X, Juggernaut Marko) Vietnam? (Iron Man, War Machine, Punisher) Afghanistan? (Iron Man's first backstory retcon) Iraq?

All of them are now tied to something else: the Siancong War. Details with spoilers at the other end of the link.