It was a remote location that they were lead to believe it was a tranquil vacation spot. It was hot, humid, they had to work the fields and follow orders all through a loud speaker.
The Americans won the Spanish-American War. As a result of the Treaty of Paris, the US gained territory in the Pacific and Carribean, including Guam, Puerto Rico, and the Philippines. This led to the US increasing production of more foreign goods that they could now produce in their own territories, and therefore expanded their markets.