And the first scene does suggest that we're starting at the very beginning: In a primordial swamp of sorts, brightly costumed frogmen bounce around and swing on a mound-shaped structure.

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Furthermore, he added, should the marines be properly apprehensive about underwater obstacles, these would be effectively eliminated well before D Day by teams of Navy frogmen who would clear the beaches.

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There were security frogmen on boats in the Seine, there were helicopters whirring overhead, and the streets were lined with hundreds of police vans, in body armor and with riot shields and other riot gear.

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