The Invaders #20

The Allied heroes charge headlong into action on this September 1977 installment of Marvel's World War II super-team title, with Union Jack's bold Union Flag costume commanding center stage as Spitfire races alongside him in her yellow-and-red outfit. Captain America and the Sub-Mariner join the fray in the background, while the Human Torch blazes overhead in a burst of flame — all rendered with kinetic energy by cover penciler Gil Kane and inker Frank Giacoia. The cover also teases a Golden Age bonus: a reprint of the Sub-Mariner's origin story, making this an especially packed issue of "The Greatest Superheroes of World War Two!