A skirmish took place at Fairfax Court House on June 1, 1861, which caused the death of Captain John Quincy Marr of the Warrenton Rifles. His death is considered the first Confederate battle death. In the same month, the first land battle of the War between the States took place around and near the town of Philippi located in western Virginia (today, in West Virginia). On June 3, Union troops led by Colonel B. F. Kelly clashed with Confederate troops led by Colonel George A. Portfield. This fighting was not only a victory for the Union forces, but the retreat of the Confederates from the surprise Union attack on a dark, rainy night was exceedingly rapid. The Confederates fled more than thirty miles in one day to a town called Beverly, thereupon earning for their action the title, the "Philippi Races." On July 21, along a creek called Bull Run, near Manassas, approximately twenty-five miles from Washington, some Union forces under the leadership of General Irvin McDowell met Confederate forces under the leadership of General Pierre G. T. Beauregard. Manassas was the site of a key railroad junction, an important line of supply and communication. Although the Union forces were at first successful, the firm stand taken by the Confederate forces on Matthews Hill and on Henry Hill led by General Thomas Jonathan Jackson and a counter-attack led by Confederate General Joseph E. Johnston's forces resulted in chaos in the Union army and a panicky retreat to Washington. This was a most unexpected defeat for the Union forces. "J. E. B." Stuart served under Joseph Johnston at this time and led a successful mounted charge against the Federal infantry. He also helped create disorder and panic in their lines. This first Battle of Bull Run or Battle of Manassas was the occasion for T. J. Jackson's famous nickname: "Stonewall." General Bernard E. Bee, a South Carolinian, headed some troops which had become panicky, and, as he saw T. J. Jackson's brigade in correct line formation, he is said to have made the following comment to his group: "Look! There is Jackson and his brigade standing like a stone wall. Rally behind the Virginians." From that time on, T. J. Jackson was called "Stonewall" Jackson. As the Union forces neared Manassas, Captain Alexander, a Confederate officer, spotted their coming from his lookout station. He relayed their approach by wigwagging signals with flags. This action is believed to be the origin of semaphoring. This battle caused the North to realize that the conquering of the South was not the easy task that it had predicted or had assumed. Their military slogan "On to Richmond" became a military challenge rather than an accepted conclusion.