The Philippine-American War began in 1899 following the transfer of sovereignty over the Philippines from Spain to the United States in the Treaty of Paris that ended the Spanish-American War. Fighting erupted between U.S. forces and Filipino revolutionaries led by Emilio Aguinaldo, who had proclaimed independence but did not recognize U.S. control. The war lasted over three years as the U.S. pursued Aguinaldo and defeated his forces. Aguinaldo was captured in 1901, acknowledging U.S. sovereignty and effectively ending the war, though resistance continued in some areas for over a decade.