They were confident and believed the war would end quickly.
Some of the factors that made several political groups to fail in their quest for freedom or self determination were leadership wrangles, lack of financial resources, lack of rallying factors as most of them were regional based,and a poor organization culture. Several leaders were also bought out or bribed by the masters.
Explanation:
"U.S. victory in the war produced a peace treaty that compelled the Spanish to relinquish claims on Cuba, and to cede sovereignty over Guam, Puerto Rico, and the Philippines to the United States. The United States also annexed the independent state of Hawaii during the conflict."