Twice-Told-Tales: Angry Angor Allies Aggressively Attack

In 1971, The Champions of Angor traced a rogue robot that attacked their planet back to its home world of Cam-Lam-Lo, they inadvertently became adversaries of the visiting Justice League of America. Cam-Lam-Lo was racked with war from opposing sides spawning vehicles and weapons of destruction. Three members of the League and a friend had earlier faced a gigantic mech which attacked the county of Peru on Earth-One, and temporarily inflicted insanity upon fellow Leaguers Batman and Hawkman. 

After tackling the robot using android duplicates of the heroes, Green Lantern along with fellow members the Flash and the Atom as well as honorary associate Zatanna traveled to the origin point of their automaton aggressor. Initially the Leaguers found stiff opposition with the Champion’s evasive super-speedster, a bad-tempered bald-man, an avian winged warrior, and a caped yellow-and-red garbed matter-manipulating maiden. The two teams eventually mended the rift between them, and combined to defeat their mutual foe.

In 1968, an evil entity traveled to Earth-Two and empowered a youth with vast abilities, in order to destroy that world. This being previously invaded the Cam-Lam-Lo of that universe, that like its counterpart planet was racked with war from opposing sides spawning vehicles and weapons of destruction. In order to combat this threat, the Justice Society member known as the Spectre confronted a make-shift team including an evasive swift-stripling, a bad-tempered bald-man, an aircraft winged warrior, and a caped yellow-and-free Roman gladiator.

Along with his duplicate, the Spectre was able to subdue the trifecta of terror, preventing his world from having the same eventuality as Cam-Lam-Lo itself. The lad Hamilton Benedict returned to normal, his sinister puppeteer faded from existence, and the gladiator himself vanished back to whence he came.

While Hamilton and his allies attacked the Gateway City of Earth-Two, such a threat wasn't lodged against its corresponding counterpart Coast City of Earth-One by either Cam-Lam-Lao nor the Angorians. 

However, this tale highlights remarkably similar threats that those cities' champions Green Lantern and Spectre encountered. A few of these were the red-skinned devious deviants of other dimensions known as Lord Ys (when Green Lantern first met Zatanna) and Azmodus (when Spectre first returned in the 1960s) which attempted to invade each Earth. Then there was the similarly clad Invisible Destroyer and Sad Jack the Mastermind who met Lantern and Spectre.