Answer
The Zimmerman note finally turned the eyes of the American public towards declaring war on Germany, they finally snapped after Germany's attacks on a American ships.
A substantiated opinion is best supported by facts, like : studies, data, and research.
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The Cold War border between democratic Western Europe and Communist Eastern Europe
The answer is belief in Islam.
Arabs invaded the Sindh region in northern India during the 8th century. It was the Arab Umayyad Caliphate (an Islamic empire) which attempted to expand its frontiers to the East and conquer India and, therefore, started a series of campaigns against the Indian kingdoms in the East of the Indus river, but finally failed to conquer this region.
The Turkish were a nomad people from central Asia who converted to Islam in the 10th century. After that, under the leadership of Tugrul Beg of the Seljuk dynasty, they started to expand to the South-West and invaded the Khurasan region in Eastern Persia. They established the Seljuk Empire which expanded to the West into Anatolia, what today is modern Turkey.
When Marx said that <span>"The proletarians have nothing to lose but their chains" he meant that the common people of the word were already heavily disenfranchised, and only had opportunity to gain by switching from a capitalistic system to a communist one. </span><span />