Zorses

Zorses are a majestic and graceful breed. They are bred for both, strength and stamina, and used in the Northern Steppe by Nomadic Tribesmen and are often sold to the Kahns for high reward. Zorses are produced by breeding regular horses with a strange striped horse-like animal ("zebra", the breed settled in the region of Southern Grassylands after the "Andal Expansion of the Balkan States") from the Southern Grassylands. Zorses are sterile, in the manner of mules. They are popularly called the "Horse-Zebra Offspring". 
Zorses are a large chunk of the Kahn Nomadic Riders of the Northern Grassylands, and the Khanate Cavalries of the Sea of Kahns and the Free States in the North of Tyrinia and East of Roma.