Uploaded October 2025 | Updated September 2026, 1 week ago

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This documentary tells the gripping, unsung story of mine warfare in World War II, focusing on the Allied fight for the vital sea lanes. It begins in November 1939 with the perilous mission to recover and crack the secrets of Germany's new, devastating magnetic influence mine off Shoeburyness.

This is the programme 'Secrets of World War II'.

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