Battle for Gallifrey

The Battle for Gallifrey was an invasion co-ordinated by the Vex Empire, under the command of the Hal. The invasion occurred on 29 November 3453 and kickstarted the Vex Occupation of Gallifrey which lasted until 3460.

According to Gordra's estimates, over 60 million Time Lords and Gallifreyans lost their lives in the battle, including all-but-one member of the High Council.

After only three hours, the Capitol was invaded and the Hal, along with Cordale, assassinated Lord President Gregori and declared themselves the new rulers of Gallifrey. (PAN: The Eye of the Storm)