The pose Okuu is making here on those two jets might be a reference to that one old Van Damme Volvo truck commercial.

So, what song are on it? I'm guessing covers of at least the following.
Brighter than a Thousand Suns, Nuclear Attack, Concrete Sarcophagus, Sonne, Rust in Peace... Polaris, B.Y.O.B. and Blackened.

Throwing in some more 1980s classics (song titles could make a triptych by themselves):
Voivod - Nuclear War
Bolt Thrower - Nuclear Annihilation
Sodom - Nuclear Winter

Bust out the Guns and pepper them with Getter energy! The Gainax pose never gets old.

Btw I tagged this with "propaganda" since it appears to be anti-nuclear propaganda given that little inset and the commentary. Not sure about the exact context about the comments towards those agencies.