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  On February 15,1898, an explosion sank the battleship U.S.S. Maine in the Havana,Cuba Harbor. Killing 266 of the 354 crew members, this led to the Spanish-American War.
 https://www.loc.gov/item/today-in-history/february-15
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  President William McKinley asks Congress to declare war on Spain.
 http://www.history.com/this-day-in-history/mckinley-asks-for-declaration-of-war-with-spain
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  To capture Spanish-held Santiago de Cuba on the southern coast of Cuba, the U.S. Army engages Spanish forces at El Caney and San Juan Hill.
 http://www.history.com/this-day-in-history/the-battle-of-san-juan-hill
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  concluding engagement fought near Santiago de Cuba in the Spanish-American War, U.S success resulted in Final Victory over the Spaniards
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  Following the capture of San Juan Heights, the Americans invested Santiago, bringing up Lawton’s Division and placing Garcia’s Cubans to the west of the city.
 http://www.cubaheritage.org/articles.asp?lID=1&artID=130
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  The brief and one-sided Spanish-American War comes to an end when Spain formally agrees to a peace protocol on U.S. terms: the cession of Cuba, Puerto Rico, and Manila in the Philippines to the United States pending a final peace treaty
 .http://www.history.com/this-day-in-history/armistice-ends-the-spanish-american-war