Question

What was the most important event propelling the United States into the Grand Alliance with Great Britain and the Soviet Union during WWII? A. the Japanese attack on Pearl Harbor B. the America First policy C. the discovery of Nazi concentration camps D. Germany's invasion of the Soviet Union

Answer 1

The most important event propelling the United States into the Grand Alliance with Great Britain and the Soviet Union during WWII is : A. the Japanese attack on Pearl Harbor.

What is pearl harbor?

Pearl harbor was when United State of America was attacked by the Japanese navy.

What made the United state of America  into the Grand Alliance with Great Britain and the Soviet Union during WWII  was because of  the Japanese attack on Pearl Harbor.

Therefore the correct option is A.

Learn more about Pearl Harbor here:https://brainly.com/question/860420

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Answer 2

Answer:

Pearl Harbor

Hope this helps!