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
Fort Sumter General P. G. T. Beauregard were ignored. Union attempts to resupply and reinforce the garrison were repulsed on January 9, 1861 when the first shots of the war, fired by cadets from the Citadel, prevented the steamer "Star of the West", hired to transport troops and supplies to Fort Sumter, from completing the task. After realizing that Anderson's command would run out of food by April 15, 1861, President Lincoln ordered a fleet of ships, under the command of Gustavus V. Fox, to attempt entry into Charleston Harbor and supply Fort Sumter. The ships assigned were the steam sloops-of-war USS