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
Fort Sumter an attack by South Carolina militia. The fort was not yet complete at the time and fewer than half of the cannons that should have been available were in place, due to military downsizing by President James Buchanan. In a letter delivered January 31, 1861, South Carolina 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." Over the next few months repeated calls for evacuation of Fort Sumter from the government of South Carolina and then from Confederate Brigadier