The Battle of Olustee or Battle of Ocean Pond was fought in Baker County

Baker County, Florida

Baker County is a county located in the U.S. state of Florida. As of 2000, the population was 22,259. The U.S. Census Bureau 2008 estimate for the county is 26,164 . Its county seat is Macclenny, Florida. While primarily rural, the county is included in the Jacksonville Metropolitan Area.-...

, Florida

Florida

Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 on 20 February 1864, during the American Civil War

American Civil War

The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

. It was the largest battle fought in Florida during the war.
In February 1864, Major General Quincy A. Gillmore, commander of the Union's Department of the South at Hilton Head

Hilton Head Island, South Carolina

Hilton Head Island or Hilton Head is a resort town in Beaufort County, South Carolina, United States. It is north of Savannah, Georgia, and south of Charleston. The island gets its name from Captain William Hilton...

, South Carolina, ordered an expedition into Florida to secure Union

Union (American Civil War)

During the American Civil War, the Union was a name used to refer to the federal government of the United States, which was supported by the twenty free states and five border slave states. It was opposed by 11 southern slave states that had declared a secession to join together to form the...

 enclaves, sever Confederate

Confederate States of America

The Confederate States of America was a government set up from 1861 to 1865 by 11 Southern slave states of the United States of America that had declared their secession from the U.S...

 supply routes (especially for beef and salt), and recruit black soldiers.