00:02Britain may be an insignificant little rock in the North Atlantic
00:06But for centuries the island we call home was coveted by foreign powers
00:12Making fear of invasion a fact of life
00:15From north to south, east to west
00:182,000 years of threats have left their mark
00:24In this series we'll seek out these reminders
00:28From weaponry and castles to warships
00:31As we tell the story of a centuries-long obsession with attack from overseas
00:37From my headquarters here at Walmer Castle
00:40I'll be exploring how a thirst for power, both here and abroad
00:45Led to some of the most turbulent periods in British history
00:50Who were the Normans and why does he want to invade England?
00:54And getting my hands on some truly extraordinary artefacts
00:59And this is original
01:01Engineer Professor Danielle George and historian Dr Onyeka Nubia
01:05Will be travelling the UK in search of the physical evidence that tells of a centuries-long struggle
01:11Look at this, all the way up as well
01:12And experiencing how those foreign threats impacted the lives of ordinary people
01:17Were people in Britain feeling that this was going to happen?
01:20I'm Professor Alice Roberts and this is the story of Fortress Britain
01:27We shall defend our island, whatever the curse may be
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