The Avengers #156

In "The Private War of Doctor Doom!", the Avengers face a dual threat as they battle Attuma at Hydro Base and then confront the cunning Doctor Doom, whose schemes threaten to unravel their unity. With the Vision attempting to reason with Doom while Attuma is caught in a surprise clash with the Sub-Mariner and Wonder Man, tensions rise in a story written by Jim Shooter and Gerry Conway, illustrated by Sal Buscema and Pablo Marcos, and colored by Don Warfield, with lettering by Gaspar Saladino, Joe Rosen, and Karen Mantlo. The cover, by Jack Kirby and Al Milgrom, captures the intensity of the moment.