Cornwallis now withdrew to Wilmington, while Greene moved across North Carolina after the British forces under Lord Rawdon. Several engagements took place, the principal one being at Hobkirk's Hill, near Camden. Greene inflicted severe losses upon the enemy, but was compelled to retreat, and spent the summer among the hills of the Santee, in the neighborhood of Camden. Advancing toward the coast, he fought the last battle in the State, at Eutaw Springs, near Charleston, September 8, 1781. The advantage was with the British, but the victory was one of those that are as disastrous as defeat. Their loss was so heavy that they retreated during the night and took shelter in Charleston. Greene had completed his work with admirable effectiveness. Without winning victories he had, by his caution, skill, celerity of movement, and generalship, almost cleared the South of the enemy, for the only points held by them were Charleston and Savannah, where they were closely hemmed in for the rest of the war. [Illustration: (CORNWALLIS)] MOVEMENTS OF CORNWALLIS. Meanwhile Cornwallis was at Wilmington, where he learned of Greene's movements too late to intercept him. He was confident, however, that Rawdon was strong enough to overthrow Greene, and he moved northward into Virginia to join the forces already there, and complete the conquest of the State. No serious opposition was encountered by him, and Tarleton plundered the country as he passed through it. Entering Virginia, Cornwallis found himself opposed by Lafayette, with 4,000 troops, which was hardly one-half the force under his own command. Orders came from Clinton in New York for Cornwallis to seize upon some suitable place near the coast, easily reached by the British vessels. Cornwallis selected Yorktown, on the peninsula between the James and York Rivers, where he fixed the headquarters of the army, and began throwing up fortifications. OUR FRENCH ALLIES. The time had come when the friendship of France for America was to accomplish something. In the summer of 1780 Rochambeau landed at Newport with 6,000 troops, and later they were marched to Washington's camp, near Peekskill and Morristown. Confident that he now had an army that could achieve important results, Washington made preparations to attack Clinton in New York. Rochambeau gave him every help, the allies working together with the utmost cordiality and enthusiasm. THE YORKTOWN CAMPAIGN.