I recently visited the Western Approaches bunker in Liverpool by exchange flags (http://www.liverpoolwarmuseum.co.uk/ ). It was great fun – from this underground complex the Battle of the Atlantic was run with Naval and RAF forces being co-ordinated to get convoys safely into Britian and destroy German submarines, aircraft and surface units trying to starve the UK into submission.
From a Very British Civil War perspective the trip served two purposes:
- The Free City of Liverpool would have had a similar if much smaller operation to rpotect the shipping in of it’s supplies.
- The ground war of efendign the beseiged city could well have had a similar type headquarters,
He’s a slide show of the trip: