Question

Which geographic challenge did the Nazi face once the Soviet Union entered the war

Answer 1

The Soviet Union had stretched from Europe to the Pacific Ocean, and conquering all of it would take time and effort, and the Nazi's had to face the Soviets AND nature at the same time

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Answer 2

C. There was now a large and formidable front to the east.

Step-by-step explanation:

Since the Soviet Union was located east to Germany, they now had a whole fronto to the east that they had to protect and fight on, prior to this they were focusing their efforts on the west and south and now they had to worry about another enemy to the east.