General Clinton, whose forces had joined those of Howe, soon saw the unprotected state of the passes. The information he acquired as to their unguarded condition he at once communicated to Howe, who thereupon held a consultation with him, and planned measures to entrap the patriots. They arranged a plan of attack. On the 26th the Hessian troops, under command of General De Heister, took the road leading to Flatbush through the hills, while General Grant, with another division, took the shore road. These movements were intended to deceive Putnam, and enable General Clinton, with the main body, to direct his efforts to gain possession of the pass at Bedford, and thereby flank the American lines. The manoeuvre was successful. Putnam, learning of the advance of Generals De Heister and Grant, dispatched a strong force under Lord Stirling to guard the river road, and another under General Sullivan to impede the progress of De Heister at Flatbush. Putnam did not comprehend the movements of the enemy, and did not learn the advantage they had gained by their military skill until General Clinton had accomplished his purpose, by gaining the position he desired, and had opened a heavy fire upon Sullivan's rear. Sullivan saw that he was surrounded. After vainly attempting to break through the lines of the enemy and secure the lost ground, his troops became confused and broke ranks, taking refuge in the neighboring hills. They could not escape, and the greater part, with their faithful officer, were soon discovered and secured as prisoners of war. The contest with General Grant on the shore road was far more animated and vigorous. Lord Stirling, who had command of the American troops, was posted on the slope of the hills just north of Greenwood Cemetery, and firmly maintained his ground against Grant, until the latter received reinforcements. Early on the morning of the 27th, General Grant reached the lower pass, and encountering a regiment under command of Major Bird, was compelled to retreat. General Putnam, who had been apprised of the retreat, directed Lord Stirling to hold the invaders in check. Stirling, in obedience to the order, started with two regiments for the Narrows. A Connecticut regiment was also placed under marching orders, and followed to render him support and assistance.