Erathia

"Erathia? Well, I never heard of Erathia. Any good about it? Well, I think we've been thinking it's a medieval-styled kingdom, and since Enroth is only a fantastical world without modern technology... until now. They've got modern technology. If they've got modern technology, think again."

--Su Ji-Hoon, Erathian Union

Erathia (also known as the Erathian Union) is a kingdom on the continent of Europe on Earth  Ruled by the Gryphonheart dynasty, it is inhabited mostly by humans. Its capital city is Steadwick. It is bordered by the United Kingdom.