Wilkinson's defense for his failure was that General Hampton had refused to join him at St. Regis for fear of lack of provisions and forage.

After the events just related, Colonel Scott was engaged in preparing the new levies of troops for the field and arranging for supplies and transportation for the next campaign.

On March 9, 1814, he was appointed to the rank of brigadier general, and ordered to join General Jacob Brown, commanding general of the United States army, then moving toward the Niagara frontier. On the 24th General Brown marched to Sackett's Harbor, where Scott established a camp of instruction. On assembling of the army at Buffalo, Scott was assigned to the command of the Ninth, Eleventh, and Twenty-fifth Regiments of infantry, with a part of the Twenty-second Regiment and Captain Towson's company of artillery. In addition to this command there were at this time at Buffalo the commands of Generals Porter and Eleazer Wheelock Ripley. The whole force was placed in camp under General Scott's immediate direction. In the latter part of June General Brown returned to Buffalo, and on the morning of July 3d Scott's brigade with the artillery of Major Jacobs Hindman, crossed the river and landed below Fort Erie, while Ripley's brigade landed a short distance above. Fort Erie was invested, attacked, and soon surrendered, and on the morning of the 4th Scott's brigade moved in advance in the direction of Chippewa. He was engaged for a distance of sixteen miles in a running fight with the British forces under the Marquis of Tweedale. Toward night the Marquis of Tweedale crossed the Chippewa River and joined the main army under General Sir Phineas Riall. Scott then took position on a creek some two miles from Chippewa. On the east was the Niagara River and the road to Chippewa, while an the west was a heavy wood. Between the wood and the river were two streams—the Chippewa and Street's Creek. General Riall, the British commander, was posted behind the Chippewa, flanked on one side with a blockhouse and a heavy battery on the other.

Both of these streams were bridged on the road to Chippewa, the one over Street's Creek being nearest to Scott, while that over the Chippewa was nearest to Riall. On the morning of the 5th General Brown had determined to make the attack, but the enemy, anticipating it, made the first forward movement, and there were a number of skirmishes. General Porter, whose command consisted of volunteers, militia, and friendly Indians, first engaged the British and drove them back through the woods. General Riall at this moment was seen advancing with the main body of his army, and the retreating troops rallied, attacking Porter furiously, and, despite his own coolness and gallantry, his troops gave way and fled. This was about four o'clock, and General Brown, being with Porter, saw the advance of the British force, and meeting General Scott, said to him, "The enemy is advancing." General Brown then moved to the rear and ordered the advance of Ripley's brigade. The British army was composed of the One Hundredth Regiment, under the Marquis of Tweedale, the First Royal Scots, under Lieutenant-Colonel Gordon, a portion of the Eighth or King's Regiment, a detachment of the Royal Artillery, a detachment of the Royal Nineteenth Light Dragoons, and some Canadian militia and Indians. These were supported by a heavy battery of nine guns. Scott crossed the bridge under fire of this battery, losing a number of men. After crossing, the commands of Majors Henry Leavenworth and John McNeil, Jr., formed line in front opposite the center and left of the enemy. Major Thomas Sidney Jesup moved to the left and advanced to attack the enemy's right. Towson's battery was on the right, on the Chippewa road. Seeing that the British lines outflanked him, Scott ordered the movement of Jesup to the left. The battle now opened, Jesup holding in check the right wing of the enemy, his position in the wood concealing him from view. General Scott had now advanced to within eighty paces of the enemy, and ordering the left flank of McNeil's battalion formed on the right so that it was oblique to the enemy's charge and flanking him on the right. Scott called to McNeil's command, which had no recruits in it: "The enemy say we are good at long shot, but can not stand the cold iron. I call upon the Eleventh to give the lie to that slander. Charge!" The charge was made at once, supported by a corresponding charge of Leavenworth and a flank fire from Towson's battery. The British broke, and fled in great confusion.

In the meantime Major Jesup, commanding on the left, ordered his men to advance, which they did, driving the enemy into his intrenchments across the Chippewa. The British forces engaged were about twenty-one hundred men, and that of the Americans nineteen hundred. The British lost in killed, one hundred and thirty-eight; wounded, three hundred and nineteen; and missing, forty-six. The American loss was sixty killed, two hundred and forty-eight wounded, and nineteen missing. General Brown in his official report says: "Brigadier General Scott is entitled to the highest praise our country can bestow; to him more than to any other man am I indebted for the victory of July 5th. His brigade covered itself with glory. Every officer and every man of the Ninth, Twenty-second, Eleventh, and Twenty-fifth Regiments did his duty with a zeal and energy worthy of the American character." Two days after the battle of Chippewa General Scott forced a passage across the Chippewa, driving the enemy.

A fort called Messasauga was built after the campaign of 1813 by the British as a defense to Fort George, and being re-enforced by General Riall, he moved to Burlington Heights on Lake Ontario. It was General Brown's intention to capture these forts before beginning further or more extended operations. With this purpose, he ordered some heavy guns from Sackett's Harbor; but Commodore Chauncey being sick, and the enemy having a superior fleet on the lake, the attack on these forts was abandoned. General Brown then made a feint by moving up the Niagara and recrossing the Chippewa, with a view to draw the enemy down and to enable him to obtain supplies from Fort Schlosser. Failing in this, it was his purpose to send General Scott by the road from Queenstown and thus force Riall to battle.

On the afternoon of the 25th General Brown received a note from a militia officer who occupied some posts on the American side of the Niagara, that a thousand British troops had crossed from Queenstown to Lewiston, a few miles below the Chippewa. It was thought that the object of this movement was to capture the American magazines at Schlosser and cut off supplies from Buffalo. General Brown having determined to threaten the forts at the mouth of the Niagara, General Scott's command was put in motion for this purpose. It consisted of four battalions under Colonel Hugh Brady, and the commands of Majors Jesup, Leavenworth, and McNeil, Captain Towson's artillery, and Captain Harris's detachment of cavalry, the whole force aggregating thirteen hundred men. After a march of two miles some mounted British officers were discovered on a reconnoitering expedition, their forces being a short distance off and hidden from view.

General Scott's orders were to march on the forts, as information had been received that Riall had divided his forces, sending a thousand of them across the river. He, however, determined to move forward and give battle. Dispatching Adjutant-General Jones to General Brown with information that the enemy was in his front, he moved on, and was astonished to see drawn up in line of battle on Lundy's Lane a larger force than he had fought at Chippewa; but he determined to give battle and rely upon re-enforcements being rapidly sent to him. Lieutenant Richard Douglass was now dispatched to inform General Brown of the situation. On the night of the 23d Lieutenant-General Sir Gordon Drummond had arrived at the mouth of the river with re-enforcements. This was not known to General Brown. Riall had marched down the road which Scott was to have taken on the 26th, coming by Queenstown, and had not sent any troops across the Niagara. His re-enforcements were coming up rapidly. The battle opened late in the afternoon. The British line, eighteen hundred strong, posted on a ridge in Lundy's Lane running at right angles with the river, was in front of Scott. The left of this line was on a road parallel to the river, with a space grown up with small timber, extending some two hundred yards. He ordered Major Jesup and Colonel Brady to take advantage of this and turn the enemy's left from the concealed position which the brushwood afforded. The other infantry forces had been placed in line with detachments of cavalry on both sides and held as reserves. The British, outflanking Scott on the left, made a movement to attack in flank and fear. This was repelled by Major McNeil with heavy loss. Jesup had succeeded in his movement, while Brady, Leavenworth, and Towson were engaged in the front. Jesup had captured General Riall and a number of other officers far in his front, and then resumed his line. At nine o'clock the British right was driven back from its assault on Scott's flank, and his left was turned and cut off. The center posted on the ridge held its place, supported by nine pieces of artillery. Another battalion of British troops was on its way as a re-enforcement, and but a short distance away, when General Brown arrived on the field, in advance of the reserve. He thus describes in his report what occurred from the time of his arrival:

"Apprehending that these corps were much exhausted, and knowing that they had suffered severely, I determined to interpose a new line with the advancing troops, and thus disengage General Scott and hold his brigade in reserve. Orders were accordingly given to General Ripley. The enemy's artillery at this moment occupied a hill which gave him great advantage and was the key to the whole position. It was supported by a line of infantry. To secure the victory it was necessary to carry this with artillery and seize the height.