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The Monroe Doctrine warns European nations that the United States would not tolerate further colonization or puppet monarchs.
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The 19th-century doctrine or belief that the expansion of the US throughout the American continents was both justified and inevitable.
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A Mexican Revolutionary general and one of the most prominent figures of the Mexican Revolution.
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Spurred by the nationalism aroused by the Spanish-American War, the United States annexed Hawaii in 1898 at the urging of President William McKinley.
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Maine was a battleship that had blown up due to a fire, and Americans claimed the explosion to be an attack from Spain.
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The Teller Amendment was an amendment to a joint resolution of the United States Congress, enacted on April 20, 1898, in reply to President William McKinley's War Message. It placed a condition on the United States military's presence in Cuba.
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The Spanish–American War was a conflict fought between Spain and the United States in 1898.
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The Capture of Guam was a bloodless event between the United States and the Kingdom of Spain during the Spanish–American War.
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Open Door Policy. The Open Door Policy is a term used to refer to the United States policy established in the late 19th century and the early 20th century, as enunciated in Secretary of State John Hay's Open Door Note, dated September 6, 1899 and dispatched to the major European powers.
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The Boxer Rebellion, Boxer Uprising or Yihequan Movement was a violent anti-foreign and anti-Christian uprising that took place in China
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By the Treaty of Berlin, signed December 2, 1899, and ratified February 16, 1900, the U.S. was internationally acknowledged to have rights extending over all the islands of the Samoa group east of Longitude 1,715 west of Greenwich.
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On March 2, 1901, the Platt Amendment was passed as part of the 1901 Army Appropriations Bill. It stipulated seven conditions for the withdrawal of United States troops remaining in Cuba at the end of the Spanish–American War, and an eighth condition that Cuba sign a treaty accepting these seven conditions.
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The Russo-Japanese War was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and Korea.
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The Treaty of Portsmouth formally ended the 1904–05 Russo-Japanese War.
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The Panama Canal is an artificial 48-mile waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean.
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The U.S purchased the Virgin Islands