Anthroia.

In Equestria, ponies were the dominate race for thousands of years. But, they were unaware of a different race on the other side of Planet Equus, a race that was higher in the food chain, smarter, stronger, bigger, and more advanced than the ponies could ever have thought. This other race commonly known as "Humans" had one thing on their mind, land. And lots of it. When they came across Equestria, they took one look at the wide opened land before them and declared war against the ponies. It raged on for seven years until the humans stood on top victorious, and below them the ponies mourned over the death of their two princesses…

After the war was over and the ponies became slaves in every way to the human as more and more of them began to settle down into the new claimed land. It's been this way for five long years. All the humans were happy as the ponies stayed miserable. But, what they all did not expect was the appearance of a young human in his twenties. But what the weirdest part was, was that he was siding with the ponies…