The object of Howe was, by acting on his anxiety for Philadelphia, to seduce him from the strong ground about Middlebrook, and tempt him to approach the Delaware in the hope of defending its passage. Should he succeed in this, he had little doubt of being able to bring on an engagement, in which he counted with certainty on victory. The considerations which restrained Howe from attempting to march through Jersey, leaving the American army in full force in his rear, had determined Washington to allow him to proceed to the Delaware, if such should be his intention. In that event, he had determined to throw those impediments only in the way of the hostile army which might harass and retard its march, and maintaining the high and secure grounds north of the road to be taken by the enemy, to watch for an opportunity of striking some important blow with manifest advantage. Washington was not long in penetrating Howe's designs. "The views of the enemy," he writes to General Arnold in a letter of the 17th (June, 1777), "must be to destroy this army and get possession of Philadelphia. I am, however, clearly of opinion, that they will not move that way until they have endeavored to give a severe blow to this army. The risk would be too great to attempt to cross a river when they must expect to meet a formidable opposition in front and would have such a force as ours in their rear. They might possibly be successful, but the probability would be infinitely against them. Should they be imprudent enough to make the attempt, I shall keep close upon their heels and will do everything in my power to make the project fatal to them." "But, besides the argument in favor of their intending, in the first place, a stroke at this army, drawn from the policy of the measure, every appearance contributes to conform the opinion. Had their design been for the Delaware in the first instance, they would probably have made a secret, rapid march for it, and not have halted so as to awaken our attention, and give us time to prepare for obstructing them. Instead of that they have only advanced to a position necessary to facilitate an attack on our right, the part in which we are most exposed. In addition to this circumstance, they have come out as light as possible, leaving all their baggage, provisions, boas, and bridges at Brunswick. This plainly contradicts the idea of their intending to push for the Delaware." Finding the American army could not be drawn from its strong position Howe determined to waste no more time in threatening Philadelphia by land, but to withdraw from Jersey and to embark his army as expeditiously as possible for the Chesapeake or the Delaware. On the night of the 19th of June (1777), he returned to Brunswick, and on the 22d to Amboy, from which place the heavy baggage and a few of his troops passed into Staten Island on the bridge which had been designed for the Delaware. [2]