It was our entire civilization Kei. Not just faction against faction. The war irrevocably split our entire species into two. We do not age as organic life does, and it takes far more to completely extinguish our lives.

[An entire planet. Everyone at war. Brother against brother, friend against friend. For time immemorial.]

We cannot give up, and the Decepticons refuse to give ground at all. So we are trapped in an eternal stalemate. No matter how hard one side pushes, the other will force the status quo to return...