Hope I'm not duplicating but since it's so little known I'll give a brief outline of the War in Florida.
Most Florida troops were out of state before the real fighting began - the state quickly seceded within days of South Carolina and was in the "Montgomery" Confederacy.
There was an early failed attempt to seize the fort at Pensacola - it and Key West were in Federal hands throughout the war. Jacksonville fell to a naval assault early on.
Most of the warfare in Florida was the result of Federal moves from Jacksonville into the interior.
The name "Cracker" refers to Florida's early Wild West days as cattle country.
CSA drovers would take herds up the middle of the state to the railhead at Gainesville for trains headed north, "crackin' whips".
Union cavalry regiments from Jacksonville would penetrate the interior to cut off these herds, resulting in battles like those at Gainesville and Bunnell.
A little known captain named Dickinson leading irregular cavalry defeated Union forces in those and other battles. He gave the New York, Vermont and New Hampshire cavalry regiments there a hot time apparently. He would also ambush Union shipping on the St.Johns River, which Federal forces had control of.
The Suwannee River was a different matter though. The Confederates still had gunboats there and would have regular shootouts with Union boats trying to control the river. The Olustee offensive was aimed to cut Florida off from Jacksonville to Cedar Key at the mouth of the Suwannee.
Attempts on the capital at Tallahassee led to the grotesque massacre at Perry and the Battle of Natural Bridge, both Union defeats. Tallahassee was the last Confederate capital east of the Mississippi to capitulate, and was never under Federal occupation before that.
Florida cattle kept heading north to Virginia until Sherman's March knocked Georgia out of the war, and kept many from starvation. A number of Confederate government officials like Judah Benjamin escaped through the Florida interior after Appomattox, it being the only territory not in Union hands. Jeff Davis was on his way there when captured.
Florida regiments served in most of the major Tennessee and Virginia battles, and were there at the fall of Atlanta and Richmond. Many fell at Gettysburg.
The Little State that Could, Florida. The Little Known Brother of the Confederacy.