World War V

World War V was a conflict at which the Doctor was present, either during or prior to his ninth incarnation. (DW: The Unquiet Dead) In it, much of Earth's art treasures were destroyed, though that did not include the Mona Lisa. (DWM: Art Attack!)


 * The date of this conflict is unknown, but as World War VI was narrowly averted in the year 5000 (DW: The Talons of Weng-Chiang), it had to be some time prior to that.