They might be bigger in terms of land but have an equal or smaller population than us. The Equestrians did not know about Canterbury despite sharing a border. That makes me think that most of their population might be along rivers and the coast which would leave the eastern side of their country either sparsely populated or completely empty wilderness. They might consider uninhabited lands they've explored theirs even if they never settled them.That is possible though personally I think it's more likely to be a mistake since otherwise Equestria would be a lot bigger than we thought and for some reason suddenly spikes eastwards without encountering any other countries despite perfectly surrounding one
Last edited: