Answer:
At the First Battle of Bull Run, the North had more men and thought the war wouldn't last long but this fight proved them wrong.
Step-by-step explanation:
The First Battle of Bull Run was the first major Civil War clash between the Union and the Confederation.
The battle took place on July 21, 1861 near the small town of Manassas, Virginia, 60 km southwest of Washington. Although they thought they would obtain an easy victory, the Union forces, under the orders of Brigadier-General Irvin McDowell, crossed the Bull Run River to confront the southern army under the orders of the generals Joseph E Johnston and Pierre Gustave Toutant de Beauregard. Despite their commitment to the battle, which was at first favorable to them, the northern forces suffered a bitter defeat and, routed, had to retreat to Washington.