Fort Barrancas mostly by enslaved African-American workers. January 8, 1861, more than three months before the American Civil War officially started at Fort Sumter, South Carolina, a company of 50 U.S. Army soldiers stationed at Fort Barrancas, under the command of John H. Winder fired upon a militia. This militia was Florida state troops under Colonel William Henry Chase demanding that the U.S. troops surrender the fort. Lieutenant Adam J. Slemmer, acting commander in Winder's absence, had the troops fire shots meant to repel the militia. Lt Slemmer knew that Fort Pickens was easier to defend, so he spiked the guns at
Battle of Fort Sumter at Sumter when he heard the Confederate fire, but the secrecy of the operation had kept him unaware that a relief expedition was in progress and he chose not to start a general engagement. In a letter delivered January 31, 1861, Governor Pickens demanded of President Buchanan that he surrender Fort Sumter because, "I regard that possession is not consistent with the dignity or safety of the State of South Carolina." Conditions at the fort were difficult during the winter of 1860–61. Rations were short and fuel for heat was limited. The garrison scrambled to complete the defenses as best