Romana
Why not? Being Prime Minister was quite fun, actually. Though if you want to get technical, I never would have been Prime Minister if Martha Jones hadn't encouraged me to open my fob watch.
Thank you for your compliment, but the Daleks had something far worse than me fighting there. Millions were dying on the front lines every day. MILLIONS. Dying endless deaths. On both sides. Not even I could stand there bearing witness to that. That was not war, it was suicide.
So tell me, Romana. If you were standing in the middle of a field bathed in the blood of millions of people dying endless deaths, would you remain standing there to endure such a fate? There was no hope for victory for anyone at that point.
War Queen is what you were, Romana. You may have regenerated, but it's still inside you. Don't tell me your regeneration has given you a new outlook on things. Are you getting as sappy as the Doctor now?