An Egyptian pharaoh said something like this about the sea people- “They dwelled in their islands far away on the dark sea”.

We know Southern Britannia has always been famous for its Tin, especially Cornwall. Tin and Copper make bronze. Herodotus said the Phoenicians sailed to the British isles for tin. I wonder if there was some type of powerful federation that came down from the British isles (islands far away on the dark sea) and raided where they sold their tin at whenever those places stopped buying. Idk fun thought🤷‍♂️