Philippi

On June 3, 1861, Union forces defeated the Confederacy at the Battle of Philippi in modern-day West Virginia. It was the first land Battle of the Civil War. From the article:

"After an overnight battle fraught with rain, both contingents arrived at Philippi on the morning of June 3. Southern sympathizer Matilda Humphries saw the Union troops approaching and sent her son to warn Porterfield, but he was caught by Union pickets. During the confrontation between Humphries and the Union soldiers who accosted her son, she fired a pistol. The assembled men took it for the arranged symbol, and thus the attack began prematurely. The Confederates had failed to post pickets, so they were completely surprised when a Union artillery barrage awoke them from their slumber. Some were able to fire at the advancing Yankees but were unable to put up a solid defense. They soon broke and retreated to the south. Kelley’s men arrived on the wrong road and were unable to block their retreat; a chase ensued. Kelley was shot in the pursuit, while Lander performed a daring show of horsemanship, riding down a steep hill through underbrush. The Confederates would retreat all the way to Huttonsville, almost 50 miles to the south. The frantic retreat would cause journalists to dub the battle the 'Races at Philippi.”'