The Soviet Union was one country that had been friendly with Hitler and later joined the allies. Hence, Option D is the correct statement.
The maximum essential issue in swaying the Soviets finally to go into an alliance with America became the Nazi selection to release its invasion of the Soviet Union in June 1941.
The Soviet Union, which to begin with had a nonaggression relationship with Germany and took part in its invasion of Poland, joined the Allies in June 1941 after Operation Barbarossa.
Hence, The Soviet Union was one country that had been friendly with Hitler and later joined the allies. Option D is the correct statement.
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