From catchphrases like “Yo, Joe,” and “Knowing is half the battle,” to the highly spoof-able PSAs that cropped up years later, the cartoon ... in which characters like Gung-Ho discuss ...

The '80s were the era of G.I. Joe: A Real American Hero, which was the face of the franchise in cartoon form ... the original ...

The following contains major spoilers for GI Joe #1, on sale now from Skybound Entertainment and Image Comics. A fan-favorite GI Joe just lost his life in the team's very first Energon Universe ...