The Ponies thought they outmatched Mankind in every way, save technology and physical strength.
They were wrong.
After 6 years of conflict mankind broke through the barrier and in the course of a few weeks had almost annihilated 85% Equestrian populace and sent the rest on the run.
Now the last remaining remnants of the few free Equestrians are divided and broken.
This is the story of the last living Elite Royal guard.