Triangle 1992-11. Continued from Superman (1987) #65 and continues in Action Comics (1938) #675.
As Superman gathers his super-powered army for a pre-emptive strike against Warworld, Brainiacs head ship regains attack capability and captures Aquaman.
After the strike team liberates the King of Atlantis, Dubbilex uses his fantastic mental abilities to override the head ship's control center and they take the ship through hyperspace to Warworld for a full frontal attack on Brainiac and a rescue mission to save Orion and Lightray.
In the hopes of disctracting Superman and his strike team, Brainiac teleports bands of Warworlders to Metropolis to attack the citenzry, but Batmans base team is ready to hold the lines.