Serving as an impetus for the French to enter the war on the side of the colonists, for ten points, identify this October 4th, 1777 battle that took place north of Philadelphia.
The losing commander's plan at this battle consisted of an attack on Grant and Donop's wing as part of a four-pronged simultaneous attack, but the fog led to one column firing on another.  After this battle, Lafayette was given command of Stephen's forces, as he was found incredibly drunk, and despite carrying a flag of truce, Lieutenant William Smith was killed at this engagement.  Following the breaking of Sullivan's Brigade, Colonel Matthews was captured at this battle, and .Stephen's forces strayed from the lane of attack and made for the Chew House instead of meeting with Wayne's left flank. Serving as an impetus for the French to enter the war on the side of the colonists, for ten points, identify this October 4th, 1777 battle that took place north of Philadelphia.
The losing commander's plan at this battle consisted of an attack on Grant and Donop's wing as part of a four-pronged simultaneous attack, but the fog led to one column firing on another.  
Battle of {Germantown}