Final answer:
The mutual nonaggression pact of 1939 was signed by Hitler and Stalin, also known as the Molotov-Ribbentrop Pact.
Step-by-step explanation:
Who signed the mutual nonaggression pact of 1939?
The mutual nonaggression pact of 1939 was signed by Hitler and Stalin. It was a treaty between Nazi Germany and the Soviet Union, also known as the Molotov-Ribbentrop Pact. The pact stated that Germany and the Soviet Union would not attack each other and agreed to divide Eastern Europe into respective spheres of influence. This pact offered Hitler a guarantee that he would not have to fight a war on two fronts.
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