Why did Wales stay Welsh? Rome conquered the region in brutal campaigns that lasted decades. Rome occupied it with more soldiers per square mile than almost anywhere else in the empire. Rome ruled it for more than three hundred years. And yet Wales never became Roman. No villas. No towns. No Latin. Just forts, roads, and a population that outlasted the empire by staying exactly who they'd always been. This is the story of what happens when an unstoppable force meets an immovable culture.