The Time wars, a dark time for us Galireyans. But it was not a choice. We didnt do it for our personal benefit, we did it or the benefir of our entire universe, even the less intelligent species, like humans and earth.
The Last great Time war meant an intergalactic battle against us time lords, and the darleks, betwenn two of the most powerful races in all of the universe. If we hadn't done anything they would've conquered the universe, destroying every other planet in its path. We had to stop them.
P.S. Thanks for looking. If i get 10 favourites i will upload chapter 1! Whilst youre waiting you could check out my other book too!