What war tactic germany the ability to overcome the soviet troops

Germany quickly overran much of Europe and was victorious for more than two years by relying on this new military tactic of "Blitzkrieg." Blitzkrieg tactics required the concentration of offensive weapons (such as tanks, planes, and artillery) along a narrow front.

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explanation:

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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