Ww2 footage mostly but that's cause ww2 had aerial dogfights and the kinda vibe they were going for with the space combat. Plane footage from Vietnam is just carpet bombings, not very useful for stand ins for attack on the death star, maybe for alderaan but otherwise it wouldn't be that useful.
Don’t he have Vietnam war footage in the original cut of the film before the special effects were added?
Ww2 footage mostly but that's cause ww2 had aerial dogfights and the kinda vibe they were going for with the space combat. Plane footage from Vietnam is just carpet bombings, not very useful for stand ins for attack on the death star, maybe for alderaan but otherwise it wouldn't be that useful.