The colonists joyfully accepted the offer, seeing that the intervention of France in the struggle would completely alter its conditions. Heretofore the British had been enabled to send over men and stores at will, but were they blockaded by a French fleet their difficulties would be immensely increased.

As there had been no cause of quarrel between England and France, this agreement was an act of wanton hostility on the part of the latter. On obtaining information of the signature of the treaty between France and the colonies, the English ambassador was recalled from Paris and both countries prepared vigorously for war.

The first result was that the English deemed it prudent to evacuate Philadelphia and retreat to New York. Washington endeavored to cut off their retreat, and a battle took place at Freehold Court House, in which the Americans were worsted. Washington drew off his army, and the British army continued its march to New York without further opposition. Early in May the French sent off a fleet of twelve ships of the line and six frigates, carrying a large number of troops commanded by Count D'Estaing. An English fleet, under Admiral Byron, was lying at Portsmouth, and this sailed on June 9 in pursuit; for it was not until that time that information was received of the intended destination of the French fleet.