Reading about Naval Mines, I came across a curious claim:
for example, during World War II, Britain declared simply that it had mined the English Channel, North Sea, and French coast.
It's not cited, but there's a similar claim down a ways saying that Britain did the same thing during the first world war.
So the questions begin. Why did Britain mine their own channel during WW2?
Britain's navy was vastly superior to the Kriegsmarine, or so I've been told, so I don't see why they would want to cut off timely naval access between their east and west shores.
Could it actually be the case that Britain mined only the southern part of the Channel? Or maybe they used deep mines only triggerable by submarines?