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(explosion) But even with all this high-tech infrastructure, if the enemy aircraft did manage to break through, we'd be left dependent on much more basic measures
Full Transcript
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(explosion)
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But even with all this high-tech infrastructure,
00:00:09.009 --> 00:00:12.084
if the enemy aircraft did manage to break through,
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we'd be left dependent on much more basic measures.
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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.