What do you think Churchill meant when he wrote: "To have the United States at our side was to be the greatest joy. Now at this very moment, I knew the United States was in the war, up to the neck and into death. So we had won after all!... Hitler's fate was sealed. Mussolini's fate was sealed. As for the Japanese, they would be ground to powder."?

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also, i need more than one person answering this