In July 1861, Wilson was present for the Civil War's first major battle at Bull Run Creek in Manassas, Virginia, an event which many senators, representatives, newspaper reporters, and Washington society elite traveled from the city to observe in anticipation of a quick Union victory. Riding out in a carriage in the early morning, Wilson brought a picnic hamper of sandwiches to feed Union troops. However, the battle turned into a Confederate rout, forcing Union troops to make a panicky retreat. Caught up in the chaos, Wilson was almost captured by the Confederates, while his carriage was crushed, and he had to make an embarrassing return to Washington on foot. The result of this battle had a sobering effect on many in the North, causing widespread realization that Union victory would not be won without a prolonged struggle.