Great War (Unbound Universe)

The Great War was a devastating time war in a parallel universe. During the war, reality broke and whole civilisations were burned out of time.

The Doctor told Bernice Summerfield that he had tried to help from the sidelines, but there was no way to stop the devastation (or if there was, he had forgotten it in the shifting of the timelines). However, Mandeville claimed that the Doctor had been a main participant, called the "cautious warrior" for his strategy of sidling up to his enemies and cowardly stabbing them in the back. (AUDIO: The Library in the Body) The Doctor did try to help his people during the War, but found they wouldn’t take his advice. (AUDIO: Asking for a Friend) He also worked with the Master but ultimately abandoned him, deeming his plan too insane. (AUDIO: The Emporium At The End)

When the War was at its worst, the Kareem were created. The Kareem believed knowledge was the source of all the fighting so sought to destroy all knowledge. (AUDIO: The Library in the Body)

During the fighting, a human colony named itself Planet X and the government drew up legislation to make the planet as boring as possible, reflected in the architecture which consisted of cubes, everyone was assigned a number instead of a name, in the hopes of escaping the attention of the combatants. (AUDIO: Planet X)

The people of Tramatz were a key player on one side of the War. They activated a reality warping weapon, which caused them to be unable to recall what they’d done. (AUDIO: The Very Dark Thing)

The War ended when the combatants ran out of weapons and galaxies. None of the survivors could remember what it was about. The universe was dying (AUDIO: The Library in the Body) though the Doctor had managed to buy it a few more centuries by sacrificing some of his memories. (AUDIO: The Emporium At The End) Since everyone before him in the line of succession had been killed, as all his people were dead, the Doctor was left as Ruler of the Universe. (AUDIO: The Library in the Body)