Answer:
Germany
Explanation:
Germany invaded Poland to regain lost territory and ultimately rule their neighbor to the east. The German invasion of Poland was a primer on how Hitler intended to wage war–what would become the “blitzkrieg” strategy.
It was called the blitzkreig or lightning war which is just massed infantry movemetns alongside tanks trucks and massive air support
It's D.
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Puerto Rico was not a scene of battle between Spanish American War.
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