It shattered the North's hope for a quick victory. The First Battle of Bull Run, fought in July 1861, was the first major land battle of the Civil War.

It resulted in a significant Confederate victory, surprising many in the North who believed the war would end swiftly. The defeat not only demoralized Union troops but also showcased the determination and fighting capability of the Confederate forces. The battle underscored the need for better preparation and organization in the Union army, setting the stage for a prolonged and brutal conflict rather than a quick resolution.