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There's codebreaking, which is what they're doing at Bletchley, but there's also the Y service, for example, which is listening into enemy radio
Full Transcript
00:00:01.000 --> 00:00:02.006
There's codebreaking, which is what they're doing
00:00:02.006 --> 00:00:06.013
at Bletchley, but there's also the Y service, for example,
00:00:06.013 --> 00:00:08.143
which is listening into enemy radio.
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Movie Summary
During World War II, the British built or reinforced a series of structures consisting of over 26,000 buildings to form a line of defence against an expected German invasion. Rob Bell travels around the UK to learn their secrets.