How did the entry of the United States into World War I affect the war? A. Did not affect the war’s outcome.

B. Added hundreds of thousands of troops to the Allied cause.

C. Made German soldiers fight much harder than they had before.

D. Infused much-needed cash into the Allied war effort.

The entry of the United States was the turning point of the war, because it made the eventual defeat of Germany possible. It had been foreseen in 1916 that if the United States went to war, the Allies' military effort against Germany would be upheld by U.S. supplies and by enormous extensions of credit.

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operation overlord was the codename for the battle of normandy, the allied operation that launched the successful invasion of german-occupied western europe during world war ii. the operation was launched on 6 june 1944 with the normandy landings