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Securing the Narrow Sea

In all of WWII, there are few greater contrasts than between the perfect organization and astounding creative engineering of the D-Day landings and of Germany’s “Operation Sea Lion”, its planned invasion of England – impromptu, cobbled-together, and in the end mostly bluff. “Mulberry” artificial harbors, cross-channel underwater fuel pipelines, concrete “Phoenix” floating caissons, swimming tanks,