I came here because I again thought of a comic book that I remember from the late 50s. It was about the planet Earth under occupation by alien powers (they were green, as I recall, and they had neat and menacing helmets and face plates).
Interestingly enough, while searching for that comic book, I saw a post from someone else who remembered the same plot but from the late 90s. I wanted to tell him what I knew, but in the process of signing up to this site again I lost his post.
I could be wrong about the date, but I'm 80, and I wasn't reading comic books in the 90s. I'm sure that it was in the 50s, because I joined the Army in 1956, and that was the end of my comic book days.