"Island of Doom", first broadcast in 1979, introduces a villainous paramilitary organization intent on world domination called "COBRA", three years before Hasbro and Marvel introduced their own Cobra organization as the main antagonist in the "G.I. Joe: A Real American Hero" franchise in 1982.
Godzilla's attack on COBRA homages the original Godzilla film except Godzilla is hero and COBRA military the villains . Examples are Godzilla melting COBRA's tanks with his flame breath and swatting their fighter jets.