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It's even something as basic as having horseshoe-shaped embankment around every plane on every airfield
Full Transcript
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It's even something as basic
00:00:02.002 --> 00:00:04.687
as having horseshoe-shaped embankment
00:00:04.687 --> 00:00:07.002
around every plane on every airfield.
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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.