The underwater war saw many innovations and a rapid increase in electronic technology, which eventually enabled the Allies to achieve ultimate victory.
Up Next in Season 1
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Cruises of the Secret Raiders
The fascinating story of the secret heavily-armed cargo ships deployed by the Germans which were in reality designed to sink Allied merchant ships as well as refuel German U-boats and warships.
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Secrets of the Battle of the Bulge
In 1944 as Hitler faced defeat he tried one last gamble of an offensive on the Western Front. The result was the 'Battle of the Bulge'. But what the Germans did not know was the Allies were decoding their radio messages.
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How Germany was Bombed to Defeat
One thousand bomber raids flown by the US airforce by day and the same by Britain's RAF by night. The result was a firestorm which destroyed German cities, industry and communications; raids which involved much personal bravery and the use of secret technology.
