War

War was a type of conflict.

The Time Lords warred with the Great Vampires during the Dark Times. (TV: State of Decay) They also engaged in two major time wars which appeared to destroy Gallifrey. The first war was against the enemy (PROSE: Alien Bodies, The Ancestor Cell) and the next against the Daleks. (TV: Dalek, The Day of the Doctor)

Earth had at least six world wars: Two in the 19th century (TV: Twice Upon a Time, PROSE: Timewyrm: Exodus), two between the 20th and 25th centuries. (AUDIO: Frostfire), one in the 37th century (COMIC: Art Attack) or the 49th century. (AUDIO: Singularity) and one in the year 5000 (TV: The Talons of Weng-Chiang; AUDIO: The Butcher of Brisbane).

After the First Doctor helped defeat the Daleks during the First Dalek War, his granddaughter Susan decided to stay on Earth with resistance fighter David Campbell. (TV: The Dalek Invasion of Earth, ''Prelude Deceit)

The War Lords kidnapped humans from various wars in Earth's history to create an army to conquer the galaxy. (TV: The War Games)

The Rutans and Sontarans were at war with each other for thousands of years. (TV: The Time Warrior, The Sontaran Experiment, TV: Horror of Fang Rock, TV: The Poison Sky)

Article 15 of the Shadow Proclamation said that murder was not a rule of war. (PROSE: Diamond Dogs)