Fort O'Rourke 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 convene discussions of secession. The Virginia State Convention passed an ordinance
Battle of Fort Sumter with the surrender of General Robert E. Lee's Army of Northern Virginia at Appomatox Courthouse. Charleston Harbor was completely in Confederate hands for almost the entire four-year duration of the war, leaving a hole in the Union naval blockade. Union forces conducted major operations in 1862 and 1863 to capture Charleston, first overland on James Island (the Battle of Secessionville, June 1862), then by naval assault against Fort Sumter (the First Battle of Charleston Harbor, April 1863), then by seizing the Confederate artillery positions on Morris Island (beginning with the Second Battle of Fort Wagner, July 1863, and followed by