After Clinton's unsuccessful attempt to invade North Carolina in May, 1776, no further effort to place the State under British control was made until 1780. But during the intervening years the Carolina troops had not been idle. Their valor had been proved at Brandywine, Germantown and Stony Point, and during the winter at Valley Forge 1,450 of her soldiers shared with their comrades from the other States the hunger, cold and suffering that was the portion of Washington's army throughout those dreary months. The North Carolina troops had aided in the brave but unsuccessful attempt to drive the British from Savannah, and 5,000 of her soldiers had been sent to prevent the capture of Charleston; but the patriot forces had been unable to repulse the invaders. Savannah fell, then Charleston, and by the last of May, 1780, both Georgia and South Carolina were in the hands of the enemy, and Cornwallis was threatening North Carolina.
So great was the blow to the American cause from the loss of these Southern States, and so great the danger confronting North Carolina, that Congress ordered DeKalb, of the Continental line with the regulars from Maryland and Delaware to march to the rescue of the patriots in the South. General Gates, the reputed victor at Saratoga, was also ordered South, and put in command of the Southern forces.
For awhile the enemy remained quiet, Cornwallis delaying the devastation of South Carolina until the maturing crops should be safe. This respite gave the Carolinians time to collect their forces on the South Carolina border, in order to drive back the enemy.
Isaac Gregory, who in May, 1779, had been promoted to the office of Brigadier-General of the Edenton District, on the resignation of John Pugh Williams, was ordered to join General Caswell in South Carolina. As soon as he could collect his men, Gregory marched towards the Piedmont section, on his way to Caswell's army; and by June he was with Rutherford's Brigade at Yadkin's Ford in Rowan. Near this place the Tories had collected, some 800 strong; and Rutherford hoped, with Gregory's aid, to crush them. But to his disappointment, no opportunity was given, for General Bryan, the Tory leader, hearing of the defeat of the Loyalists at Ramseur's Mill a few days before, crossed the Yadkin and united with General MacArthur, whom Cornwallis had sent to Anson County.
By July 31 Gregory's men, with Rutherford and his brigade, were with General Caswell at The Cheraws, just across the South Carolina border. For several weeks there was much suffering among the men on account of the lack of food, for though corn was plentiful, the rivers were so high that the mills could not grind the meal.
Lord Rawdon's army was stationed near Camden, South Carolina, and Gates, who had joined Caswell on August 17, having learned that the British general was daily expecting a supply of food and stores for his men, determined to intercept the convoy and capture the supplies for his own army. In the meantime Cornwallis, unknown to Gates, had joined Lord Rawdon. Gates, ignorant of this reinforcement of Cornwallis' troops, marched leisurely towards Camden to capture the coveted stores.
The result of the battle that followed is known only too well. The American militia, panic-stricken at the furious onslaught of the enemy, threw down their arms and fled. General Gates, after a vain attempt to rally his troops, lost courage, and abandoning his forces and his stores, brought everlasting disgrace upon his name by fleeing in hot haste from the field.
But the cowardly conduct of Gates and several of the other officers of the American army, as well as many of the militia, in this disastrous battle, was offset by the heroism and courage of others; and among those who won undying fame on that fatal field, none is more worthy of praise than General Gregory.
Roger Lamb, a British officer, writing an account of the battle, and speaking of the disgraceful conduct of those officers and men whose flight from the field brought shame upon the American army, gives this account of Isaac Gregory's heroic struggle to withstand the enemy at this bloody field: "In justice to North Carolina, it should be remarked that General Gregory's brigade acquitted themselves well. They formed on the left of the Continentals, and kept the field while they had a cartridge left. Gregory himself was twice wounded by bayonets in bringing off his men, and many in his brigade had only bayonet wounds."
As to fight hand to hand with bayonets requires far more courage than to stand at a distance and fire a musket, this account of Gregory and his troops proves the bravery with which they fought during those terrible hours. General Gregory's horse was shot from under him while the battle was raging; and seeing him fall, so sure was the enemy of his death that Cornwallis in his official report of the battle, gave in his name in the list of the American officers killed on the field.