A deliverance Dunkirk was to the British. But Churchill reminded them in the House on June 4 that “wars are not won by evacuations.” The predicament of Great Britain was indeed grim, more dangerous than it had been since the Norman landings nearly a millennium before. It had no army to defend the islands. The Air Force had been greatly weakened in France. Only the Navy remained, and the Norwegian campaign had shown how vulnerable the big fighting ships were to land-based aircraft. Now the Luftwaffe bombers were based but five or ten minutes away across the narrow Channel. France, to be sure,
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