Many refugees from defeated tribes went over the border to Canada; those in the South went to Florida while it was under Spanish control. During the early 19th century, the federal government was under pressure by settlers in many regions to expel Indians from their areas. The Indian Removal Act of 1830 offered Indians the choices of assimilating and giving up tribal membership, relocation to an Indian reservation with an exchange or payment for lands, or moving west. Some resisted fiercely, most notably the Seminoles in a series of wars in Florida. They were never defeated, although some Seminoles did remove to Indian Territory. The United States gave up on the remainder, by then living defensively deep in the swamps and Everglades. Others were moved to reservations west of the Mississippi River, most famously the Cherokee whose relocation was called the "Trail of Tears."