War in Heaven

The War, sometimes known as The Future War or The War in Heaven was a Time War which was fought, or would have been fought, between the Time Lords and a hostile process of history they referred to as The Enemy.

It should not be confused with the Last Great Time War between the Time Lords and the Daleks.

As the Laws of Time weakened during the conflict, events from during the War-era began to interact with those from before its outbreak, ultimately leading to the pre-emptive destruction of Gallifrey to prevent the War from ever taking place.

Despite Gallifrey's destruction apparently proving temporary on this occasion, the war did seem to have been forestalled. However, many events that would have taken place during the War are well documented and likely continue to have consequences for some. Since the Osirian Court's timeline moves in the opposite direction to Gallifrey's, events already in their past occured as part of this averted future war, and since the City of the Saved is immune to any depletionary alterations to history, the removal of the War from the rest of the continuum would not have slowed its progress there.

Future History of The War
It is indicated that the Time Lords were not winning The War. There were at least nine clones of Gallifrey. War Looms clogged the atmosphere of at least on of the Gallifreys with biodata soot. (EDA: The Taking of Planet 5)

Preemptive Strikes
The Time Lords attempted to beat The Enemy by taking a preemptive strike at The Enemy's home world, but not via conventional time travel. The Time Lords set a giant Gallifreyan warship containing The Cold and aimed it at what they believed to be The Enemy's home world: Earth. (EDA: Interference)

Involvement in The War
It is not known if Faction Paradox were involved as active combatants in The War. They did place a colony on the side of a Gallifreyan warship aimed at what was believed to be The Enemy's home planet. Anathema was the colony, the colonists were The Remote. (EDA: Interference)

Technology and Development
Time Lords from a later period in the war did not have humanoid form, only the 'Generals' had totally humanoid forms.

Type 102 TARDISes and War TARDISes were in full use by The War, 102s were used by Time Lord agents whilst War TARDISes were utilized by Time Lords on missions. (EDA: Alien Bodies, The Taking of Planet 5)

Preparations
The Time Lords of the 'present' knew that The War was approaching. Lady President Romana began stockpiling weapons in The Slaughterhouse, a weapons store protected by a time eddy.

Even at this early stage in the pre stages of The War, Romana was already War Queen and Mistress of the Nine Gallifreys. (EDA: The Ancestor Cell)

Romana, knowing that new TARDISes would be required for the future war, sent Gandar and Cavis, two of her most trusted agents, to capture the newly formed Type 102 TARDIS known as Compassion from the Eighth Doctor. (EDA: The Shadows of Avalon)