Topic 7.3 Notes – The Spanish–American War

What the Spanish-American War Changed

This war mattered less for the fighting itself than for what came after. It pushed the U.S. from a mostly continental power into an overseas empire.

1. The U.S. intervened in Cuba’s revolt against Spain.
2. The U.S. defeated Spain in both the Caribbean and the Pacific.
3. The Treaty of Paris redistributed Spain’s colonies.
4. The U.S. controlled Cuba indirectly and crushed nationalism in the Philippines.
5. The U.S. gained strategic reach in the Caribbean and Asia.

Effects to know cold

• Cuba was freed from Spain, but it was not fully sovereign because the U.S. kept major influence there.
• Puerto Rico and Guam became U.S. possessions.
• The Philippines was annexed by the United States.
• The U.S. became more involved in Asia, especially China.
• The war exposed a contradiction between American ideals and imperial rule.

The map helps you see the key shift APUSH cares about. After 1898, U.S. power reached across both the Caribbean and the Pacific.

U.S. expansion after the Spanish-American War

Why the United States Went to War

The crisis started in Cuba, where a new war for independence began in 1895. José Martí helped inspire Cuban nationalism. Spain sent General Valeriano Weyler, whose reconcentration policy forced civilians into camps. Disease, hunger, and death created real humanitarian outrage in the U.S.

American motives came together all at once:

• sympathy for Cuban independence
• protection of U.S. investments in sugar and trade
• Cuba’s strategic location near Florida and future canal routes
• nationalism and political pressure at home

Yellow journalism

Newspapers helped turn Cuban suffering into a national cause. William Randolph Hearst’s New York Journal and Joseph Pulitzer’s New York World used sensational stories and dramatic images to stir anger at Spain.

The key AP point is that yellow journalism influenced public opinion, but it did not cause the war by itself.

Immediate catalysts

• The de Lôme letter insulted President McKinley and inflamed opinion.
• The USS Maine exploded in Havana Harbor in 1898.
• “Remember the Maine” became the rallying cry.
• McKinley tried diplomacy first, then asked for intervention.
• The Teller Amendment said the U.S. would not annex Cuba.

How the War Was Fought and Won

The war lasted from April to August 1898. John Hay later called it “a splendid little war,” but that phrase hides how messy it was.

Pacific theater

• Commodore George Dewey destroyed the Spanish fleet at the Battle of Manila Bay.
• Emilio Aguinaldo cooperated with the U.S. because he expected Philippine independence.

Caribbean theater

• Main fighting in Cuba centered near Santiago.
• Important battles included Las Guasimas, El Caney, and San Juan Heights.
• Theodore Roosevelt and the Rough Riders got the headlines.
• Buffalo Soldiers and other African American regulars were crucial in the fighting.
• The Spanish fleet was destroyed at Santiago Harbor.
• The U.S. also occupied Puerto Rico.

That celebrity side of the war shows up in the famous Rough Riders group photo below, but remember that Roosevelt's unit was only part of the larger U.S. campaign in Cuba.

Theodore Roosevelt and the Rough Riders

A common test qualification is that more Americans died from yellow fever, malaria, and typhoid than from combat. Fast victory does not mean easy or well-run victory.

The Treaty of Paris and the New American Empire

The Treaty of Paris in 1898 ended the war and reshaped U.S. power.

Hawaii was annexed in 1898 too, but it was not taken from Spain and was not part of the treaty.

Cuba shows the biggest gap between words and reality. The U.S. occupied it until 1902, then forced in the Platt Amendment, which let the U.S. intervene in Cuban affairs and keep Guantánamo Bay.

Memorize this contrast: Teller Amendment = no annexation. Platt Amendment = indirect control.

The treaty barely passed the Senate. Critics said empire violated self-government. The Insular Cases beginning in 1901 said new lands could be unincorporated territories, where full constitutional rights did not automatically apply.

The Philippines and Expanded U.S. Involvement in Asia

Filipinos expected independence after Spain lost. Aguinaldo declared it in 1898. When the U.S. annexed the islands instead, the Philippine-American War began in 1899.

• the war shifted from regular fighting to guerrilla warfare
• U.S. suppression included reconcentration, harsh reprisals, and civilian suffering
• McKinley’s “Benevolent Assimilation” claimed U.S. rule would help Filipinos
• in practice, the U.S. suppressed a Filipino nationalist movement

These Pacific possessions also pulled the U.S. further into Asia:

• Guam and the Philippines became stepping-stones to Asian markets
• John Hay’s Open Door Policy pushed for equal trade access in China
• the U.S. joined the international force during the Boxer Rebellion

This was the turning point. Spain’s empire in the Americas mostly ended, and the U.S. emerged as a clearer world power with island possessions across the Caribbean and Pacific.