Retreat begins.
After the evacuation of Fort Lee, Lee was urged, unfortunately not ordered, to cross his force into the Jerseys, and so bring it into coöperation with the troops already there. The demonstrations then making in his front decided Washington to fall back behind the Passaic, which he did on the 22d, and on the same day marched down that river to Newark. On the 24th Cornwallis,[2] who now had assumed control of all operations in the Jerseys, was reënforced with two British brigades and a regiment of Highlanders.
Before this force Washington had no choice but to give way in proportion as Cornwallis advanced, until Lee should join him, when some chance of checking the enemy might be improved. At any rate, such a junction would undoubtedly have made Cornwallis more circumspect. As Lee still hung back, Washington saw this slender hope vanishing. He for a moment listened to the alternative of marching to Morristown, where the troops from the Northern army would sooner join him; but as this plan would leave the direct road to Philadelphia open, it neither suited Washington's temper nor his views, and he therefore adhered to his former one of fighting in retreat. And though he had failed to check Cornwallis at Newark he would endeavor to do so at New Brunswick.
For New Brunswick, therefore, the remains of the army marched, just as the enemy's rear-guard was entering Newark in hot pursuit. On finding himself so close to the Americans, Cornwallis pushed on after them with his light troops, but as Washington had broken down the bridge over the Raritan after passing it, the British were brought to a halt there.
New Brunswick evacuated.
Sustained by the vain hope of being reënforced here, either by Lee or by new levies of militia coming up as he fell back toward Philadelphia, Washington meditated making a stand at New Brunswick, which should at least show the exultant enemy that there was still some life left in his jaded battalions, and perhaps delay pursuit, which was all that could be hoped for with his small force. Instead, however, of the expected reënforcement, the departure of the New Jersey and Maryland brigades, still so called by courtesy alone, since they were but the shadows of what they had been, put this purpose out of the question. Again Washington reluctantly turned his back to his enemy.
Lee's troops were now the chief resource. What few militia joined the army one day melted away on the next. In Washington's opinion the crisis had come. He therefore wrote to his laggard lieutenant, "Hasten your march as much as possible or your arrival may be too late."
December 7.
Fortunately Cornwallis had orders not to advance beyond New Brunswick. He therefore halted there until he could receive new instructions, which caused a delay of six days before the pursuit was renewed.[3] On the 7th Cornwallis moved on to Princeton, arriving there on the same day that Washington left it. This was getting dangerously near, with a wide river to cross, at only one short march beyond.
In view of the actual state of things, this retreat must stand in history as a masterpiece of calculated temerity. Keeping only one day's march ahead of his enemy, Washington's rear-guard only moved off when the enemy's van came in sight. There is nowhere any hint of a disorderly retreat, or any serious infraction of discipline, or any deviation from the strict letter of obedience to orders, such as usually follows in the wake of a beaten and retreating army. Washington simply let himself be pushed along when he found resistance altogether hopeless. In this firm hold on his soldiers, at such an hour, we recognize the leader.