Florida Territory
Beginning in late 1835, Osceola and the Seminole allies began a guerrilla war against the U.S. forces. Numerous generals fought and failed, succumbing to the heat and disease as well as lack of knowledge of the land. It was not until General Thomas Jesup captured many of the key Seminole chiefs, including Osceola who died in captivity of illness, that the battles began to die down. The Seminoles were eventually forced to migrate. Florida joined the Union as the 27th state on March 3, 1845. By this time, almost all of the Seminoles were gone, except for a small group living in the Everglades.
British West Florida
British West Florida comprised parts of the modern U.S. states of Louisiana, Mississippi, Alabama and Florida. Effective British control ended in 1781 when Spain captured Pensacola. The territory subsequently became a colony of Spain, parts of which were gradually annexed piecemeal by the United States beginning in 1810.