Founding Conflict

The Founding Conflict was fought between the Time Lords and the Ravagers to bring an end to the Dark Times and anchor the structure of Time. The Ravager Swarm viewed it as an expression of a fundamental battle between Space and Time, with Gallifrey representing Space trying to take control of Time.

Siege of Atropos
The final battle in the Founding Conflict was the Siege of Atropos, on the planet Time. The Ravagers Azure and Swarm had taken over the Temple of Atropos, emptying it of Mouri and holding it thanks to five Passenger-forms, each containing millions of hostages. A small group of members of the Division, including Karvanista and led by the Fugitive Doctor, were sent into the Temple to free the hostages and apprehend the Ravagers, with the Doctor demanding that the Ravagers call off their remaining forces. Swarm and Azure refused the ultimatum and disintegrated some of the hostages, but the Division had managed to replace one of their Passengers with a different one containing six Mouri; liberating themselves from the Passenger at a strategic moment, they re-anchored Time while Karvanista captured the two Ravagers. (TV: Once, Upon Time)