Question

what made germanys invasions of europe difficult to stop during world war ii?
germanys bombs and torpedoes.
germanys powerful u - boats.
germanys air attacks and fast - moving ground troops
germanys fast - moving sea attacks and powerful navy

Explanation:

Germany used the military strategy of Blitzkrieg during World War II, which combined coordinated air attacks to gain air superiority and disrupt enemy defenses, paired with fast-moving ground troops (like panzer divisions) to quickly penetrate and encircle enemy forces. This rapid, combined approach made their European invasions hard to counter. The other options focus on single weapons/forces that were not the core of their successful early invasions.

Answer:

C. Germany's air attacks and fast-moving ground troops