They wanted to control all of the silver from the Americas, and that was the only way Europe was able to trade with China, which didn’t need any other goods from Europe
During the 1500's Spain and Portugal were the two big countries exploring The New World ( Now North and South America). Important Explorers include Christopher Columbus, Vasco de Gama, Francisco Vasquez
There are three main reasons for their exploration it is referred to as the 3G's, which are Gold, God, and Glory. Gold referring to money and any treasure that could be found. God referring to the Missionaries that went and converted many Natives to Christians. Glory referring to any fame that could be obtained by the explorers. Another reason is in search for land. This encouraged Imperialism throughout the New World which was practiced by many European Nations
Need for naval bases = acquisition of Philippines and Guam
Monroe Doctrine = aid to Cuban Revolution
"city upon a hill" = guiding countries to independence and democracy
"yellow journalism" = defend against the "attack" on the USS Maine
The Spanish American War gave the US an opportunity to get rid of the last major European influence in the Western Hemisphere and aid in creating democracy in newly freed nations. It also was an opportunity to grow their navy and gain access to resources.