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Answer:

he lack of productivity of its war economy, the weak supply lines, the start of a war on two fronts, and the lack of strong leadership. Following the invasion of the Soviet Union, using the Blitzkrieg tactic, the German Army marched far into Russia.

Explanation:

If wrong im sorry :(

Answer: The German army had trouble in the end of 1944 because they were flying bomb attacks on England.

Explanation: hope it helps