The document summarizes the Spanish-American War of 1898 which made the United States a world power. It describes the causes of the war as enforcing the Monroe Doctrine, American imperialism, and yellow journalism sensationalizing Spanish oppression in Cuba. It then outlines key events leading to war such as the Cuban insurrection against Spanish rule and the sinking of the USS Maine in Havana harbor, which newspapers blamed on Spain and helped propel the US into war. The results of the 10-week war included US acquisition of Guam, Puerto Rico, and the Philippines.