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 he would evacuate Sumter by noon, April 15, unless he received new orders from his government or additional supplies. Col. Chesnut considered this reply to be too conditional and wrote a reply, which he handed to Anderson at 3:20 a.m.: "Sir: by authority of Brigadier General Beauregard, commanding the Provisional Forces of the Confederate States, we have the honor to notify you that he will open fire of his batteries on Fort Sumter in one hour from this time." Anderson escorted the officers back to their boat, shook hands with each one, and said "If we never meet in this