They were agreed, however, that some strong point must be held in Virginia as a naval base, and on the 2d of August Cornwallis established this base at Yorktown, at the mouth of the York River, a mile wide where it flows into Chesapeake Bay.

His cannon could command the whole width of the river and keep in safety ships anchored above the town.

Yorktown lay about half way between New York and Charleston and from here a fleet could readily carry a military force to any needed point on the sea.
La Fayette with a growing army closed in on Yorktown, and Cornwallis, almost before he knew it, was besieged with no hope of rescue except by a fleet.
Then it was that from the sea, the restless and mysterious sea, came the final decision.

Man seems so much the sport of circumstance that apparent trifles, remote from his consciousness, appear at times to determine his fate; it is a commonplace of romance that a pretty face or a stray bullet has altered the destiny not merely of families but of nations.

And now, in the American Revolution, it was not forts on the Hudson, nor maneuvers in the South, that were to decide the issue, but the presence of a few more French warships than the British could muster at a given spot and time.