Attuma gathered his troops and attacked Atlantis, and was defeated by Namor the Sub-Mariner, the Prince of Atlantis and his allies the Fantastic Four. Attuma and his troops were banished from Atlantis once again. Over the years, Attuma has been at war with both Atlantis and the "surface world" (the Atlantean name for the human nations). He developed a super-weapon with which to invade the surface world, but was foiled by Iron Man. Attuma was among the villains assembled by Doctor Doom using a mind-control device in one of his attempts to destroy the Fantastic Four. As his troops left the docks they were knocked back in by a bomb in a HYDRA truck Daredevil had caused to go towards the docks. Mister Fantastic causes the Atlanteans and the other villains to forget this event. He created tidal waves in another attempted invasion of the surface world, and was this time defeated by the Avengers, after they were alerted by the kidnap of the Wasp, although Attuma nearly succeeded in drowning them. Attuma enslaved the nomadic Atlanteans after the destruction of Atlantis. After Atlantis was rebuilt, Attuma attempted another invasion during the wedding of Namor and Dorma. Attuma allied with the Red Ghost, and used mind-controlled sea creatures in another attempted conquest of the surface world, and was this time defeated by the Defenders. With Dr. Dorcas and Tiger Shark, Attuma invaded Hydro-Base, but was then defeated by a teaming of Namor and Doctor Doom. Attuma then enslaved the Avengers to use them against Namor, but unintentionally instigated a battled between the Avengers and Doctor Doom. Attuma was defeated by Namor, Doom, and the Avengers.