In the meantime, early in May, 1780, Charleston, S.C., was abandoned to
the enemy,--General Lincoln, who commanded, finding it indefensible. In
September the news came North of the battle of Camden and the defeat of
Gates, who showed an incompetency equal to his self-sufficiency, and
Congress was obliged to remove him. Through Washington's influence, in
December, 1780, Greene was appointed to succeed him; had the chief's
advice been followed earlier he would have been sent originally instead
of Gates. Greene turned the tide, and began those masterly operations
which led to the final expulsion of the English from the South, and,
under the guiding mind and firm hand of Washington, to the surrender of
Cornwallis.

On January 17, 1781, Morgan won a brilliant victory at Cowpens, S.C.,
which seriously embarrassed Cornwallis; and then succeeded a vigorous
campaign between Cornwallis and Greene for several months, over the
Carolinas and the borders of Virginia. The losses of the British were so
great, even when they had the advantage, that Cornwallis turned his face
to the North, with a view of transferring the seat of war to Chesapeake
Bay. Washington then sent all the troops he could spare to Virginia,
under La Fayette. He was further aided by the French fleet, under De
Grasse, whom he persuaded to sail to the Chesapeake. La Fayette here did
good service, following closely the retreating army. Clinton failed to
reinforce Cornwallis, some say from jealousy, so that the latter felt
obliged to fortify himself at Yorktown. Washington, who had been
planning an attack on New York, now continued his apparent preparations,
to deceive Clinton, but crossed the Hudson on the 23d of August, to
co-operate with the French fleet and three thousand French troops in
Virginia, to support La Fayette. He rapidly moved his available force by
swift marches across New Jersey to Elkton, Maryland, at the head of