Answer:
The Mississippi River
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Zimmerman telegraph, sinking of the Lusitania, and the bombing on Pearl harbor. <span />
It was Churchill who coined the term Iron Curtain in a 1946 speech he delivered in Missouri. It refers to the fact that Eastern Europe was more or less controlled by the Soviet Union. ... The Berlin Wall, which stood between 1961-1989, has been understood as the physical manifestation of the Iron Curtain
Spain became rich by stealing the wealth of the American colonies.
By expanding its territories and improving its government.