The very real threat of the invasion of Britain in 1940 initiated a huge military construction program. Around the vulnerable coasts of the country, as well as inland, were built thousands of pillboxe
Designed both to protect the their inhabitants of the towns they towered over and cow them into submission, castles dominated the landscape of Medieval England and Wales. Though some were built before
In the summer of 1940, Britain asked itself not 'will Hitler invade?' but 'when?' SEALION, the German invasion plan, provoked the construction of pillboxes, coastal defences, heavy-gun emplacements an
