Fort O'Rourke Fair Haven. No visible remains of the fort can be found. Fort O'Rourke Fort O'Rourke is a former Union Army installation now located in the Belle Haven area of Fairfax County in the U.S. state of Virginia. It was the southernmost fort built to defend Washington, D.C. in the American Civil War. Following the surrender of Fort Sumter in Charleston, South Carolina, on April 14, 1861, President Abraham Lincoln declared that "an insurrection existed," and called for 75,000 troops to be called up to quash the rebellion. The move sparked resentment in many other southern states, which promptly moved to
Battle of Fort Sumter in the so-called Iron Battery, protected by a wooden shield faced with iron bars. About 6,000 men were available to man the artillery and to assault the fort, if necessary, including the local militia, young boys and older men. On March 4, 1861, Abraham Lincoln was inaugurated as president. He was almost immediately confronted with the surprise information that Major Anderson was reporting that only six weeks of rations remained at Fort Sumter. A crisis similar to the one at Fort Sumter had emerged at Pensacola, Florida, where Confederates threatened another U.S. fortification—Fort Pickens. Lincoln and his new cabinet struggled