Unrestricted submarine warfare.
Are there choices to choose>
During World War I, the German Empire was one of the Central Powers that lost the war. It began participation in the conflict after the declaration of war against Serbia by its ally, Austria-Hungary.
The Renaissance began in Italy partly because Italian city-states were wealthy. All of the other choices are wrong: <span>Italy was not affected by the Black Death; Italy has a pleasant climate; and Italy was unified under one monarch.
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There was a war in germany that is why they came to America
