Final answer:
Blitzkrieg was the German tactic of sudden and swift attacks during World War II.
Step-by-step explanation:
The German tactic of sudden and swift attacks was called Blitzkrieg. It was a military strategy used by the Germans during World War II, characterized by rapid and concentrated attacks using combined forces of infantry, tanks, and airpower. The goal of Blitzkrieg was to quickly overwhelm the enemy and disrupt their defenses, allowing the Germans to gain control of territory.
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