WORLD WAR I
CAUSES AND COURSE OF THE WAR
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a declaration of war against Mexico
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the entry of the United States into World War I
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the passage of the Treaty of Versailles
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a restriction on immigration from Latin America
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Detailed explanation-1: -"We intend to begin on the first of February unrestricted submarine warfare. We shall endeavor in spite of this to keep the United States of America neutral.
Detailed explanation-2: -Unrestricted submarine warfare was first introduced in World War I in early 1915, when Germany declared the area around the British Isles a war zone, in which all merchant ships, including those from neutral countries, would be attacked by the German navy.
Detailed explanation-3: -On May 7, 1915, German submarine U-20 torpedoed the Lusitania, a Cunard passenger liner, off the coast of Ireland. Nearly 1, 200 men, women, and children, including 128 Americans, lost their lives. The Allies and Americans considered the sinking an act of indiscriminate warfare.