The War in Heaven or the War was a large scale time war fought between the Enemy and the Great Houses of the Time Lords. (PROSE: Alien Bodies, The Book of the War) The Laws of Time weakened during the conflict, allowing events from the War era to interact with those from before its outbreak. (PROSE: Alien Bodies)
Although the conflict was primarily between the Time Lords and the Enemy, other powers became heavily involved as they sought to either evade or exploit the War. These included Faction Paradox, the Remote, the Celestis, Lolita, Posthumanity, the Sontarans, the Ferutu, . (PROSE: Alien Bodies, Interference, The Book of the War, Dead Romance, AUDIO: The Shadow Play)
It was indicated that the Time Lords were losing the War and there were now at least nine clones of their Homeworld. War Looms clogged the atmosphere of at least one of the Gallifreys with biodata soot. These looms continually produced Gallifreyan soldiers to provide the Time Lords with fodder for the War. (PROSE: The Taking of Planet 5)
The Time Lords attempted to beat the Enemy through a preemptive strike by building a giant Gallifreyan warship containing the Cold and aiming it at what they believed to be the Enemy's homeworld: Earth. (PROSE: Interference - Book One)
Laws of Time Edit
The Laws of Time forbade Gallifrey's present from interacting with its past or future. (PROSE: Lungbarrow) Such was the temporal chaos of the War however, that combatants from the War-Era and Time Lords from the pre-War-Era encountered each other more than once. For instance, the Eighth Doctor found himself participating in an auction for his own corpse against Wartime factions who wished to weaponise it. (PROSE: Alien Bodies)
Knowing the War was approaching, the Time Lords created the Nine Gallifreys. Lady President Romana began stockpiling weapons in The Slaughterhouse, a secret arsenal protected by a time eddy. (PROSE: The Ancestor Cell) Even at this early stage, Romana had become War Queen of the Nine Gallifreys.
Romana was also aware that new TARDISes would be required for the war. She dispatched two of her most trusted agents, Gandar and Cavis, to capture the newly formed Type 102 TARDIS known as Compassion from the Eighth Doctor. She planned to use Bull-TARDISes to mate with Compassion to create a new Type 103 TARDIS. (PROSE: The Shadows of Avalon) This attempt failed, but an agreement between Compassion and the War King eventually led to the creation of Antipathy. (PROSE: Of the City of the Saved ...)
The knowledge that the Doctor and the Time Lords gathered about the future of the War created many paradoxes around the War's timeline, causing it to become very weak. The Doctor later discovered that his original TARDIS was using the energy of the leaking bottle universe to sustain the original timeline of the universe without the Enemy. In a final battle with Grandfather Paradox, the Doctor used this to restore the original timeline, undoing not only his contamination by the Faction's biodata virus but also the Enemy's entire threat to the universe. A side effect was teh destruction of Gallifrey. (PROSE: The Ancestor Cell)
Technology and development Edit
Time Lords from the fourth decade of the War did not have humanoid forms. Only the Generals had totally humanoid forms.
Type 102 TARDISes and War TARDISes were in full use by the fourth decade of the War. 102s were used by Time Lord agents whilst War TARDISes were utilised by Time Lords on missions. (PROSE: Alien Bodies, The Taking of Planet 5)