The Horde

Arriving roughly in 1928 PU, the Horde is a Stratocracy, led by their god king. They consist of a mash-up of Goblinoid and orc races that were gathered together and turned into war machines. The horde's homeland is a mystery as not many people in the horde occupied Terrasol, let alone outside, know much about it.
The Capital city of the occupied Terrasol is the elven city of Civitasol, previously the capital of the Celestial elves that used to occupy this island. The city has been mostly demolished and used as a headquarters for the military of the Horde.
As soon as the the Horde landed on Terrasol, they began massacring the local elven population. Within 4 years, their war against the elves had resulted in most of the elven population being wiped out. Centuries of Celestial Elf culture was destroyed by the bloodthirsty Horde and eventually celestial elves were wiped off of the island, their population falling to roughly 80 thousand that scattered across the rest of the continent.
After taking over Terrasol, the Horde sieged the other nations, coming close to sieging the City of Mists itself. However, as the war raged on all sides were nearing exhaustion. Eventually, the powers from each nation gathered at the city of Foedsol to negotiate a peace treaty which was eventually signed by all parties except for Dwerelith. On that day the Genocide war ended for everyone except for Dwerelith, who still battles against the Horde in the shattered lands.
The population of the Horde is a mish mash of Goblins, Orcs, Trolls, hobgoblins, and bugbears, along with a very small minority of celestial elves that were captured and bred for war. The official language of the Horde is "War Speak" or "Barbarian Tongue" as the other races call it. War speak is a unified version of Goblinoid and Orcish.