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Woodrow Wilson's mission to "make the world safe for democracy" were often backed by military force, but more often effected from behind the scenes, consistent with the general notion of hegemony and imperium of historical empires. In 1898, Americans who opposed imperialism created the Anti-Imperialist League to oppose the US annexation of the Philippines and Cuba.
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The Open Door Policy is a concept in foreign affairs, which usually refers to the policy in 1899 allowing multiple Imperial powers access to China, with none of them in control of that country.
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the United States government protested that Russian encroachment in Manchuria after the Boxer Rebellion was a violation of the Open Door Policy. the Japanese and U.S. governments pledged to maintain a policy of equality
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industrial monopolies were unnatural economic institutions which suppressed the competition which was necessary for progress and improvement.
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fought for women's suffrage and the elimination of supposedly corrupt black voters from the election booth.
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Child labor laws were designed to prevent the overworking of children in the newly emerging industries. The goal of these laws was to give working class children the opportunity to go to school and to mature more.
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President Roosevelt created the first National Bird Preserve,
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assassination of Archduke Franz Ferdinand of Austria, the heir to the throne of Austria-Hungary, on 28 June 1914 by Yugoslav nationalist Gavrilo Princip in Sarajevo triggered a diplomatic crisis when Austria-Hungary subsequently delivered an ultimatum to the Kingdom of Serbia.
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On 28 July, the Austro-Hungarians fired the first shots of the war as preparation for the invasion of Serbia. While the Russians mobilised, the Germans invaded neutral Belgium and Luxembourg on the way to France, providing a case for Britain's declaration of war against Germany.
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At the start of the war, the German Empire had cruisers scattered across the globe, some of which were subsequently used to attack Allied merchant shipping.
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Germany adopted a policy of unrestricted submarine warfare, realising that the Americans would eventually enter the war.
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Germany, which had its own trouble with revolutionaries, agreed to an armistice on 11 November 1918. The war ended in victory for the Allies.
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especially in rural areas, adopted the cause of prohibition. They saw the saloon as political corruption incarnate, and the damage done to women and children. They believed the consumption of alcohol limited mankind's potential for advancement.
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many military bases actually exist outside the country.
While territories such as Guam, the United States Virgin Islands, the Northern Mariana Islands, American Samoa, and Puerto Rico remain under U.S. control, the U.S. allowed many of its overseas territories or occupations to gain independence after World War II. Examples include the Philippines (1946) -
the Panama canal zone