Kids' Club War

"Long ago, the Ancientmen knew how the Kids' Club war is all about how a group of kid heroes and teens fought against the Empire of Darkness, an evil armada of minions from kid-friendly movies, TV shows and video games. It seemed that it's been thousands of years before I was born. How can that be?"

--Su Ji-Hoon, The Ancient Stories

The Kids' Club War was a destructive war fought between the Kids Club and the Empire of Darkness (the faction that Lola Loud sought to resurrect via the Sect of Eternal Darkness).

The conflict took place thousands of years before the Third World War and it involved a vast majority of the multiverse's factions, including all of the great powers that would eventually form two opposing military alliances: the Grand Alliance and the Coalition of the Red Star. Various high-tech weapons were made during the war, and the Empire had managed to conquer many worlds across the multiverse.

After Earth overcame the initial shock of the invasion, the Alliance armadas quickly regrouped and annihilated the Empire of Darkness and liberated worlds under EoD occupation, this forced the remnants of the Empire (including their Emperor), to exile themselves to Exegol.