10 Biggest Events In Doctor Who That You Never Got To See
3. The Sontaran-Rutan War
This war between these two species was once described by the Doctor as a pointless waste of time, as the Sontarans were simply obsessed with the fight and not the victory. There are a few conflicting accounts of how the war began, with the Seventh Doctor suggesting that the Sontarans were already sweeping across Mutter's Spiral, with only the Rutans opposing them. Another theory has the Rutans starting the war out of boredom.
While the Doctor has witnessed several battles as part of the war on Earth, the actual fighting has never been shown on-screen. The Sontarans even managed to harbour a grudge against the Time Lords as a species for ensuring that the Last Great Time War was time-locked, meaning that species without time travel technology could not fight.
The war with the Rutans on the other hand was at least several centuries old, although a definitive start date had never been identified. Different witnesses give different dates, with as early as 8000BC suggested as a beginning, while other accounts place the start in the 26th century. The latter is less likely, as in 2009 AD the Sontarans attempted to conquer Earth by using ATMOS Sat-Nav devices. The end goal was to convert the planet into a new hatchery for Sontaran Clones to fight, which suggests that the war had already been raging for millennia before this date.