Not more than three thousand soldiers were with Washington at Hackensack, without intrenching tools, tents, and necessary supplies. To risk an engagement in these circumstances was hazardous in the extreme, and a further retreat became inevitable. Leaving three regiments to guard the passages of the Hackensack, and to serve as covering parties, he withdrew to Newark, on the west bank of the Passaic. To add to the perils of his situation, the term of enlistment of General Mercer's command was about to expire. He must have reinforcements, or his entire army would be destroyed. He hurried away Colonel Reed to Governor Livingston of New Jersey, and General Mifflin to Philadelphia, to implore aid. At the same time he depended upon General Lee for immediate reinforcements, not doubting that the latter was obeying his orders; but, to his amazement, a letter from Lee revealed the startling fact that he had not moved from Northcastle. Washington renewed his orders to Lee to move with all possible despatch and come to his rescue. He said: "The enemy are pushing on, and part of them have crossed the Passaic. Their plans have not entirely unfolded, but I shall not be surprised to find that Philadelphia is the object of their movement." "We cannot make a stand here," said General Greene. "By no means," answered Washington. "My hope is to make a stand at Brunswick, on the Raritan; or, certainly, to dispute the passage of the Delaware." "Our retreat to Brunswick must be hastened, or the enemy will be upon us," added Greene. The retreat was precipitated; and when the rear-guard of Washington's command was leaving one end of Newark, the vanguard of the British army was entering at the other. On reaching Brunswick, Washington wrote at once to Governor Livingston, instructing him to collect all the boats and river craft on the Delaware for seventy miles, remove them to the western bank of the river, away from the enemy, and guard them. He was doomed to additional disappointment at Brunswick. Colonel Reed raised no troops in New Jersey, and many of those raised by General Mifflin in Pennsylvania were deserting. The term of enlistment of General Mercer's command had expired, and no inducement or entreaties could prevail upon them to remain. He could not muster over four thousand men. Still worse, a letter from General Lee to Colonel Reed disclosed the fact that the former had not given heed to the orders of his chief, and he was still at Northcastle. Moreover, the letter revealed that General Lee was plotting against him. Colonel Reed was absent when the letter arrived, and, according to his custom, Washington opened the letter, supposing it related to military business. What was his surprise to find that the letter contained insinuations against himself, and also implicated Colonel Reed, his old friend, in a plot to make Lee commander-in-chief.