It was on Monday the 25th of August that Jackson started on his march, ascending the banks of the Rappahannock, and crossed the river at a ford, dragging his artillery with difficulty up the narrow and rocky road beyond. There was not a moment to be lost, for if the news reached the enemy the gorge known as Thoroughfare Gap would be occupied, and the whole object of the movement be defeated. Onward the force pushed, pressing on through fields and lanes without a single halt, until at night, hungry and weary but full of spirit, they marched into the little town of Salem, twenty miles from their starting-place. They had neither wagons nor provisions with them, and had nothing to eat but some ears of corn and green apples plucked on the road.

It was midnight when they reached Salem, and the inhabitants turned out in blank amazement at the sight of Confederate troops in that region, and welcomed the weary soldiers with the warmest manifestations. At daylight they were again upon the march, with Stuart's cavalry, as before, out upon each flank. Thoroughfare Gap was reached, and found undefended, and after thirty miles' marching the exhausted troops reached the neighborhood of Manassas. The men were faint from want of food, and many of them limped along barefooted; but they were full of enthusiasm.

Just at sunset, Stuart, riding on ahead, captured Bristoe, a station on the Orange and Alexandria Railroad four miles from Manassas. As they reached it a train came along at full speed. It was fired at, but did not stop, and got safely through to Manassas. Two trains that followed were captured; but by this time the alarm had spread, and no more trains arrived. Jackson had gained his point. He had placed himself on the line of communication of the enemy, but his position was a dangerous one indeed. Lee, who was following him, was still far away. An army was marching from Fredericksburg against him, another would be despatched from Washington as soon as the news of his presence was known, and Pope might turn and crush him before Lee could arrive to his assistance.

Worn out as the troops were, it was necessary at once to gain possession of Manassas, and the 21st North Carolina and 21st Georgia volunteered for the service, and, joined by Stuart with a portion of his cavalry, marched against it. After a brief contest the place was taken, the enemy stationed there being all taken prisoners. The amount of arms and stores captured was prodigious: Eight pieces of artillery, 250 horses, 3 locomotives, and tens of thousands of barrels of beef, pork, and flour, with an enormous quantity of public stores and the contents of innumerable sutlers' shops.

The sight of this vast abundance to starving men was tantalizing in the extreme. It was impossible to carry any of it away and all that could be done was to have at least one good meal. The troops therefore were marched in and each helped himself to as much as he could consume, and the ragged and barefooted men feasted upon tinned salmon and lobsters, champagne and dainties of every description forwarded for the use of officers. Then they set to work to pile the enormous mass of stores together and to set it on fire. While they were engaged at this a brigade of New Jersey troops which had come out from Washington to save Manassas was attacked and utterly routed. Ewell's division had remained at Bristoe, while those of Hill and Jackson moved to Manassas, and in the course of the afternoon Ewell saw the whole of Pope's army marching against him.

He held them in check for some hours, and thus gave the troops at Manassas time to destroy completely the vast accumulation of stores, and when Stuart's cavalry, covering the retreat, fell back at nightfall through Manassas, nothing but blackened cinders remained where the Federal depots had been situated. The blow to the Northerners was as heavy as it was unexpected. Pope had no longer either provisions for his men or forage for his cattle, and there was nothing left for him but to force his way past Jackson and retire upon Washington.

Jackson had now the option of falling back and allowing the enemy to pass, or of withstanding the whole Federal army with his own little force until Lee came up to the rescue. He chose the latter course, and took up a strong position. The sound of firing at Thoroughfare Gap was audible, and he knew that Longstreet's division of Lee's army was hotly engaged with a force which, now that it was too late, had been sent to hold the gorge. It was nearly sunset before Pope brought up his men to the attack. Jackson did not stand on the defensive, but rushed down and attacked the enemy—whose object had been to pass the position and press on—with such vigor that at nine o'clock they fell back.

An hour later a horseman rode up with the news that Longstreet had passed the Gap and was pressing on at full speed, and in the morning his forces were seen approaching, the line they were taking bringing them up at an angle to Jackson's position. Thus their formation as they arrived was that of an open V, and it was through the angle of this V that Pope had to force his way. Before Longstreet could arrive, however, the enemy hurled themselves upon Jackson, and for hours the Confederates held their own against the vast Federal army, Longstreet's force being too far away to lend them a hand. Ammunition failed, and the soldiers fought with piles of stones, but night fell without any impression being made upon these veterans. General Lee now came up with General Hood's division, and hurled this against the Federals and drove them back. In the evening Longstreet's force took up the position General Lee had assigned to it, and in the morning all the Confederate army had arrived, and the battle recommenced.

The struggle was long and terrible; but by nightfall every attack had been repulsed, and the Confederates, advancing on all sides, drove the Northerners, a broken and confused crowd, before them, the darkness alone saving them from utter destruction. Had there been but one hour more of daylight the defeat would have been as complete as was that in the battle of Bull Run, which had been fought on precisely the same ground. However, under cover of the darkness the Federals retreated to Centreville, whence they were driven on the following day.

In the tremendous fighting in which Jackson's command had for three long days been engaged, the cavalry bore a comparatively small part. The Federal artillery was too powerful to permit the employment of large bodies of cavalry and although from time to time charges were made when an opportunity seemed to offer itself, the battle was fought out by the infantry and artillery. When the end came Jackson's command was for a time hors de combat. During the long two days' march they had at least gathered corn and apples to sustain life; but during these three days' fighting they had had no food whatever, and many were so weak that they could no longer march.