Arabians are one of the oldest human-developed horse breeds in the world. Horses with these features appeared in rock paintings and inscriptions in the Arabian Peninsula as far back as 2500 BC! Fiery war horses with dished faces and high-carried tails were popular artistic subjects in Ancient Egypt and Mesopotamia, often depicted pulling chariots in war or for hunting. This horse has a wedge-shaped head, large eye socket and small muzzle.
These horse are likely fighting over a mare (female horse). Whoever wins the fight can mate with her and maybe will become leader of the horse pack. The loser will have to find his own mare and horse pack if not injured :( Poor guy........