The Spanish-American War of 1898 finished Spain's pilgrim realm in the Western Hemisphere and anchored the situation of the United States as a Pacific power. The United States additionally attached the free province of Hawaii amid the contention. In this way, the war empowered the United States to build up its power in the Caribbean locale and to seek after its key and monetary interests in Asia.

From 1895– 1898, the vicious clash in Cuba caught the consideration of Americans in light of the financial and political shakiness that it delivered in an area inside such close geological closeness to the United States. The long-held U.S. enthusiasm for freeing the Western Hemisphere of European frontier forces and American open shock over fierce Spanish strategies made much sensitivity for the Cuban progressives. By mid-1898, pressures between the United States and Spain had been mounting for quite a long time. After the U.S. warship, Maine detonated and sank in Havana harbor under puzzling conditions on February 15, 1898, U.S. military intercession in Cuba turned out to be likely.
On April 11, 1898, President William McKinley approached Congress for approval to end the battling in Cuba between the revolutionaries and Spanish powers, and to set up a "steady government" that would "look after request" and guarantee the "peace and quietness and the security" of Cuban and U.S. natives on the island. On April 20, the U.S. Congress passed a joint determination that recognized Cuban autonomy, requested that the Spanish government surrender control of the island, foreswore any expectation with respect to the United States to add Cuba, and approved McKinley to utilize whatever military measures he regarded important to ensure Cuba's freedom.
The Spanish government dismissed the U.S. final proposal and promptly disjoined conciliatory relations with the United States. McKinley reacted by actualizing a maritime bar of Cuba on April 22 and issued a call for 125,000 military volunteers the next day. That same day, Spain announced war on the United States, and the U.S. Congress voted to go to war against Spain on April 25.
The future Secretary of State John Hay depicted the following clash as a "marvelous little war." The primary fight was battled on May 1, in Manila Bay, where Commodore George Dewey's Asiatic Squadron vanquished the Spanish maritime power safeguarding the Philippines. On June 10, U.S. troops arrived at Guantanamo Bay in Cuba and extra powers arrived close to the harbor city of Santiago on June 22 and 24. In the wake of disengaging and crushing the Spanish Army battalions in Cuba, the U.S. Naval force decimated the Spanish Caribbean squadron on July 3 as it endeavored to get away from the U.S. maritime barricade of Santiago.
On July 26, at the command of the Spanish government, the French minister in Washington, Jules Cambon, moved toward the McKinley Administration to examine peace terms, and a truce was marked on August 12. The war authoritatively finished four months after the fact, when the U.S. what's more, Spanish governments marked the Treaty of Paris on December 10, 1898. Aside from ensuring the freedom of Cuba, the settlement likewise constrained Spain to surrender Guam and Puerto Rico to the United States.