00:00Over the last thousand years, how have these incredible structures, weapons and strategies been crucial in shaping the nations we see today?
00:13Uncovering extraordinary stories of courage, ingenuity and innovation.
00:19We shall fight on the beaches and in the streets. We shall never surrender.
00:23Defending Europe, a brand new series, starts the 18th of September on National Geographic.
00:30Transcription by CastingWords
