How did the Britons react when the the Celts arrived?

When the Celts arrived in Britain, the Britons, who were already present, likely experienced a mix of curiOSity and conflict. Some may have welcomed the newcomers, leading to cultural exchange and integration, while others probably viewed them as intruders, resulting in competition for resources and territory. Over time, the Celts and Britons influenced each other's cultures, leading to the development of distinct regional identities within Britain.