Spain’s military was outmatched from the opening of hostilities, and an armistice signed on August 12, 1898, brought an end to the fighting. The United States occupied Cuba and took possession of Guam, Puerto Rico, and the Philippines. The bloody struggle for independence in the Philippines resumed in 1899, the U.S. having replaced Spain as the colonial power.

The main theatres of combat in the Spanish-American War were the Philippines and Cuba. Fighting centred on Manila, where U.S. Commodore George Dewey destroyed the Spanish Pacific fleet at the Battle of Manila Bay (May 1, 1898), and on Santiago de Cuba, which fell to U.S. forces after hard fighting in July.

The immediate cause of the Spanish-American War was Cuba's struggle for independence from Spain. Newspapers in the U.S. printed sensationalized accounts of Spanish atrocities, fueling humanitarian concerns. The mysterious destruction of the U.S. battleship Maine in Havana’s harbour on February 15, 1898, led to a declaration of war against Spain two months later.

Origins of the war

The war originated in the Cuban struggle for independence from Spain, which began in February 1895. The Cuban conflict was injurious to U.S. investments in the island, which were estimated at $50 million, and almost ended U.S. trade with Cuban ports, normally valued at $100 million annually. On the insurgent side, the war was waged largely against property and led to the destruction of sugarcane and sugar mills. Of more importance than its effect on U.S. monetary interests was the appeal to American humanitarian sentiment. Under the Spanish commander, Capt. Gen. Valeriano Weyler y Nicolau (nicknamed El Carnicero, “the Butcher”), Cubans were herded into so-called “reconcentration areas” in and around the larger cities; those who remained at large were treated as enemies. Spanish authorities made no adequate provision for shelter, food, sanitation, or medical care for the reconcentrados, thousands of whom died from exposure, hunger, and disease. These conditions were graphically portrayed for the U.S. public by sensational newspapers, notably Joseph Pulitzer’s New York World and William Randolph Hearst’s recently founded New York Journal. Humanitarian concern for the suffering Cubans was added to the traditional American sympathy for a colonial people struggling for independence. While these aspects of the war created a widespread popular demand for action to halt it, the U.S. was faced with the necessity of patrolling coastal waters to prevent gunrunning to the insurgents and by demands for aid from Cubans who had acquired U.S. citizenship and then had been arrested by Spanish authorities for participating in the rebellion.

The popular demand for intervention to stop the war and assure Cuban independence gained support in the U.S. Congress. In the spring of 1896 both the Senate and the House of Representatives declared by concurrent resolution that belligerent rights should be accorded the insurgents. This expression of congressional opinion was ignored by Pres. Grover Cleveland, who opposed intervention, though he intimated in his final message to Congress that prolongation of the war might make it necessary. His successor, William McKinley, was equally desirous of preserving peace with Spain, but, in his first instructions to the new minister to Spain, Stewart L. Woodford, and again in his first message to Congress, he made it plain that the U.S. could not stand aside and see the bloody struggle drag on indefinitely.

U.S. President Grover Cleveland (centre left) and President-elect William McKinley en route to the inauguration ceremony, 1897. Library of Congress, Washington, D.C.

Explore the ruins of the battleship “USS Maine” in Havana harbour, Cuba Wreck of the battleship USS Maine in Havana harbour, Cuba. Library of Congress Motion Picture, Broadcasting and Recorded Sound Division, Washington, D.C. See all videos for this article

In the fall of 1897 a new Spanish ministry offered concessions to the insurgents. It would recall General Weyler, abandon his reconcentration policy, and allow Cuba an elected cortes (parliament) with limited powers of self-government. These concessions came too late. The insurgent leaders would now settle for nothing short of complete independence. The war went on in Cuba, and a series of incidents brought the United States to the brink of intervention. Riots in Havana in December led to the sending of the battleship Maine to that city’s port as a precaution for the safety of U.S. citizens and property. On February 9, 1898, the New York Journal printed a private letter from the Spanish minister in Washington, Enrique Dupuy de Lôme, describing McKinley as “weak and a popularity-hunter” and raising doubt about Spain’s good faith in her reform program. De Lôme immediately resigned, and the Spanish government tendered an apology. The sensation caused by this incident was eclipsed dramatically six days later. On the night of February 15, a mighty explosion sank the Maine at her Havana anchorage, and more than 260 of her crew were killed. Responsibility for the disaster was never determined. A U.S. naval board found convincing evidence that an initial explosion outside the hull (presumably from a mine or torpedo) had touched off the battleship’s forward magazine. The Spanish government offered to submit the question of its responsibility to arbitration, but the U.S. public, prompted by the New York Journal and other sensational papers in the grips of yellow journalism, held Spain unquestionably responsible. “Remember the Maine, to hell with Spain!” became a popular rallying cry.

Maine The half-submerged battleship USS Maine in the harbour of Havana, 1900. Library of Congress, Washington, D.C.

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The demand for intervention became insistent, in Congress, on the part of both Republicans and Democrats (though such Republican leaders as Sen. Mark Hanna and Speaker Thomas B. Reed opposed it), and in the country at large. U.S. business interests, in general, opposed intervention and war. Such opposition diminished after a speech in the Senate on March 17 by Sen. Redfield Proctor of Vermont, who had just returned from a tour of Cuba. In matter-of-fact and unsensational language, Proctor described his observations of the war-torn island: the suffering and death in the reconcentration areas, the devastation elsewhere, and the evident inability of the Spanish to crush the rebellion. His speech, as The Wall Street Journal remarked on March 19, “converted a great many people on Wall Street.” Religious leaders contributed to the clamour for intervention, framing it as a religious and humanitarian duty.

Proctor, Redfield Redfield Proctor. Prints and Photographs Division/Library of Congress, Washington, D.C. (digital file no. LC-USZ62-61877)

Popular pressure for intervention was reinforced by Spain’s evident inability to end the war by either victory or concession. McKinley’s response was to send an ultimatum to Spain on March 27. Let Spain, he wrote, abandon reconcentration in fact as well as in name, declare an armistice, and accept U.S. mediation in peace negotiations with the insurgents. In a separate note, however, he made it clear that nothing less than independence for Cuba would be acceptable.

The Spanish government was caught upon the horns of a cruel dilemma. It had not readied its army or navy for war with the United States, nor had it warned the Spanish public of the necessity of relinquishing Cuba. War meant certain disaster. The surrender of Cuba might mean the overthrow of the government or even the monarchy. Spain clutched at the only straws in sight. On the one hand, it sought support from the principal European governments. Aside from the British, these governments were sympathetic to Spain but were unwilling to give it more than weak verbal support. On April 6 representatives of Germany, Austria, France, Great Britain, Italy, and Russia called upon McKinley and begged him in the name of humanity to refrain from armed intervention in Cuba. McKinley assured them that if intervention came, it would be in the interest of humanity. An effort at mediation by Pope Leo XIII was equally futile. Meanwhile, Spain was going far in the acceptance of McKinley’s terms of March 27—so far that Minister Woodford advised McKinley that, granted a little time and patience, Spain could work out a solution acceptable to both the United States and the Cuban insurgents. Spain would end the reconcentration policy. Instead of accepting U.S. mediation, it would seek the pacification of the island through the Cuban cortes about to be elected under the autonomy program. Spain at first stated that an armistice would be granted only on application from the insurgents but on April 9 announced one on its own initiative. Spain, however, still refused to concede independence, which McKinley evidently now considered indispensable for restoration of peace and order in Cuba.

Yielding to the war party in Congress and to the logic of the position that he had consistently taken—the inability to find an acceptable solution in Cuba would result in U.S. intervention—the president, reporting but not emphasizing Spain’s latest concessions, advised Congress in a special message on April 11 that “the war in Cuba must stop.” From Congress he asked authority to use the armed forces of the United States “to secure a full and final termination of hostilities between the government of Spain and the people of Cuba.” Congress responded emphatically, declaring on April 20 that “the people of Cuba are, and of right ought to be, free and independent.” It demanded that Spain at once relinquish authority over Cuba and withdraw its armed forces from the island and authorized the president to use the army and navy of the United States to enforce that demand. A fourth resolution, proposed by Sen. Henry M. Teller of Colorado, renounced for the United States any idea of acquiring Cuba. The president beat back an attempt in the Senate to include recognition of the existing but insubstantial insurgent government. Recognition of that body, he believed, would hamper the United States both in the conduct of the war and in the postwar pacification, which he clearly foresaw as a responsibility of the United States. Upon being informed of the signing of the resolutions, the Spanish government at once severed diplomatic relations and on April 24 declared war upon the United States. Congress declared war on April 25 and made the declaration retroactive to April 21.