The treaty signed in 1898 that ended the Spanish-American War is the Treaty of Paris. This treaty was signed on December 10, 1898, and ratified by the U.S. Senate in 1899. The agreement resulted in Spain relinquishing its control over Cuba and ceding territories such as Puerto Rico, Guam, and the Philippines to the United States. The outcome of the war marked a significant shift in American foreign policy, demonstrating its emergence as a global power. The Philippines would later become a contested territory, eventually leading to the Philippine-American War. The Treaty of Paris fundamentally altered the political landscape of the Caribbean and Pacific regions.