First Occupation of Cuba

"On January 1, 1899, the Spanish administration retired from Cuba, and that same day General John R. Brooke installed a military government on the island. This was the beginning of the United States occupation of Cuba. However, the United States government was bound by the Teller Amendment, which placed Cuba in a category different from the other areas previously controlled by Spain. Furthermore, the strong annexationsist drive had waned in the United States; the realities of Cuba as economically destroyed by the war and having a large black population were responsible for the change in United states attitudes toward the island."

Cuba: a Country Study. History of Cuba.