GUILFORD COURT HOUSE.--Having received reinforcements, Greene turned southward and offered battle at Guilford Court House (March 15, 1781). A desperate fight ensued, and when night came, Greene retired, leaving the British unable to follow him. Cornwallis had lost one quarter of his army in killed and wounded. He was in the midst of a hostile country, too weak to stay, and unwilling to confess defeat by retreating to South Carolina. Thus outgeneraled he hurried to Wilmington, where he could be aided by the British fleet. [Illustration: LAFAYETTE MONUMENT. Washington, D.C.] Greene followed for a time, and then turned into South Carolina, drove the British out of Camden, and by the 4th of July had reconquered half of South Carolina. Late in August, he forced the British back to Eutaw Springs, where (September 8, 1781) a desperate battle was fought. [11] The British troops held their ground, but on the following night they set off for. Charleston, where they remained until the end of the war. [12] YORKTOWN.--From Wilmington Cornwallis marched to southeastern Virginia, where a British force under Benedict Arnold joined him. He then set off to capture Lafayette, who had been sent to defend Virginia from Arnold. But Lafayette retreated to the back country, till reinforcements came. When Cornwallis could drive him no farther, the British army retreated to the coast, and fortified itself at Yorktown. In August Washington received word that a large French fleet under De Grasse was about to sail from the West Indies to Chesapeake Bay. He saw that the supreme moment had come. Laying aside his plan for an attack on New York, he hurried southward, marched his army to the head of Chesapeake Bay, and then took it by ships to Yorktown. [13] The French fleet was already in the bay. Some French troops had joined Lafayette, and Cornwallis was already surrounded when Washington arrived. The siege was now pressed with overwhelming force, and Cornwallis surrendered on October 19, 1781. END OF THE WAR.--Swift couriers carried the news to Philadelphia, where, at the dead of night, the people were roused from sleep by the watchman crying in the street, "Past two o'clock and Cornwallis is taken." In the morning Congress received the dispatches and went in solemn procession to a church to give thanks to God. When the British prime minister, Lord North, heard the news, he exclaimed, "All is over; all is over!" The king alone remained stubborn, and for a while insisted on holding Georgia, Charleston, and New York. But his advisers in time persuaded him to yield, and (November 30, 1782) a preliminary treaty, acknowledging the independence of the United States, was signed at Paris. [14] The final treaty was not signed till September 3, 1783. [15] [Illustration: WASHINGTON'S HEADQUARTERS AT NEWBURGH. From an old print.]