Welcome to one of the nations most secret defence sites. Hack Green has played a central role in the defence of Britain for almost sixty years. As you approach Hack Green over the picturesque farmland and rolling Cheshire countryside, it's hard to imagine a more peaceful location, but it was not always like this!

Over 50 years ago the freedom you now enjoy was in peril, World War II was being lost and Britain was struggling for its very survival. In the Air Ministry in bomb-blitzed London officials were looking for sites to locate the new Radio Detection and Direction Finding (RDF) equipment or radar as it came to be known. A chain of radar stations were already strung out along the eastern and southern coasts to face the enemy bombers and fighters threatening Britain. This system was known as 'Chain Home' and was supplemented at the outbreak of war by the 'Chain Home Low' system which was able to detect enemy aircraft flying at low altitude.

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