Why did Germany sign a nonaggression pact with the Soviet Union in 1939?

Germany signed the 1939 nonaggression pact to avoid fighting the Soviet Union while preparing for war in Europe. Hitler wanted to prevent a two-front war, especially as Germany moved against Poland and risked conflict with Britain and France. The pact was a temporary agreement not to attack each other, not a plan to absorb the Soviet Union or make it a close ally.

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