John Byrne once produced a comic where Batman and Captain America teamed up to fight some insane scheme or other concocted by The Joker and Red Skull. At one point, it looked bad for the heroes until the Clown Prince of Crime discovered the Skull’s true motivations …
See, Nazis are such scumbags that even a homicidal maniac like The Joker can’t stand the rotters.
Thaddeus Bodog Sivana has a similar epiphany in the following Captain Marvel Jr. adventure, but in keeping with the mad scientist’s evil nature his main gripe with the Germans is that they’re interfering with his own plans to conquer America.
Throw in an army of monstrous insects and you have another Otto Binder classic!
“Captain Marvel Jr. Battles The Insect Giants” originally appeared in Captain Marvel Junior #12 (Fawcett, October 1943). Although Binder is credited with the story, I couldn’t find any information about the artist.