Give some stream of consciousness and then the answer. The Spanish -- American War (Spanish: Guerra hispano-americana or Guerra hispano-estadounidense; Filipino: Digmaang Espanyol-Amerikano) was fought between the United States and Spain in 1898. Hostilities began in the aftermath of the internal explosion of the USS Maine in Havana Harbor in Cuba, leading to U.S. intervention in the Cuban War of Independence. American acquisition of Spain's Pacific possessions led to its involvement in the Philippine Revolution and ultimately in the Philippine -- American War.\n\nAnswer this question based on the passage: where did the first significant military confrontation of the spanish-american war take place?
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This is the relevant information: Hostilities began in the aftermath of the internal explosion of the USS Maine in Havana Harbor in Cuba, leading to U.S. intervention in the Cuban War of Independence.
Therefore, the answer is Havana Harbor in Cuba.
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