You must be asking about the US/Spain war in the 1890s. At that time Spain had lost most of its South American empire, and USA had stated the Munroe Doctrine, that it would actively oppose any European Power establishing or maintaining an empire in the Americas. Spain ruled Cuba, and the Cubans revolted and set themselves up as a Republic. Spain stated that it would re-take Cuba, and USA said that if it tried to do so, USA would interfere of the Cubans side. Spain declared war on USA. It lost, badly. The Spainish navy was destroyed, and USA landed troops in Cuba and helped the Cubans defeat the Spainish. This is how the USA came to be granted the right to maintain a naval base at Guantanamo Bay.
a)
It wanted to help the people of Cuba and Puerto Rico Gain freedom from Spain.
Also, The United States wanted to protect the many sugar canes plantations that the U.S. business owned on the island.
In support of the Cuban Independence Movement.
Most Americans threatened to revolt if the government declared war. American troops were not prepare for war with European nations. They wanted to protect foreign investment. They believed in the causes of both sides.
A reason that is NOT for the Civil War is to get more land.
It wanted to stay isolated. It did not want to get involved into a 'European' affair. The German sinking of the Lusitania was a reason the U.S. entered Worl War I and the Japanese bombing of Pearl Harbor, Hawaii was the reason the U.S. entered World War II.
It was the Russians who wanted to start a war
the main reason was the slavery rights
Spain fought with Cuba because Cuba wanted independence. US involved in the war because US had the economic interest in Cuba. Americans invested millions of dollar in Cuba plantations, and the attack of Spain that destroy the American ship called Maine was a reason. US also wanted Europeans to get out of Americas continent.
the explosion of the uss maine however, the underlying reason America wanted to go to war was to obtain overseas land from the Spanish who were considered an easy enemy.
An economic reason for the United States to declare war on Spain in 1898 included protecting US interests in Cuba.
The US wanted to free Cuba.
the reason why us went to war with spaine is because of the panama canal and the sinking of the battleship Maine
Most Americans wanted to avoid future wars after World War I. This was the reason the US joined the League of Nations.
Guam and Puerto Rico and the US purchased the Philippines.
The US wanted a reason to get in the war ( that's why we were in it so late). So we "let" that one slide
It did not want Puerto Rico, it wanted Spain out of its sphere of influence.
because Spain was more powerful than us
the U.S declared war to Spain because of the Havana harbor.
The US defeated Spain in the Spanish American War on August 12, 1898.