The US became involved in World War II to oppose the aggression of the Axis powers, including Japan, Germany, and Italy. the Chinese region of Manchuria. the Sudetenland of Czechoslovakia. the Allied powers, including Great Britain and France.

Axis powers, including Japan, Germany, and Italy is the reason of US becoming involved in World War II to oppose the aggression.

Why did the United States resist becoming involved in World War II?

Solatists held that the United States had no justification for entering World War II because it was ultimately a disagreement between foreign countries.

They argued that the best course of action was for the United States to strengthen its own defenses and steer clear of provoking either side.

Thus, option A is correct.

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