If you ask 'the man on the Clapham omnibus', he will almost certainly tell you that that radar was a British invention and as we had it and our opponents did not, this was a major factor in the 1939 - 45 conflict. Although radar was certainly a major factor in the Allies' success, it was not just a British invention. The first suggestions of using radio for location can be traced back to before WWI and at the outbreak of WWII no fewer that eight countries were working on the techniques, although only the United Kingdom and Germany had brought it to operational status in the hands of the military.
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