At New York, meanwhile, Clinton was in a dilemma. He was dismayed at the news of the march of Cornwallis to Virginia. Cornwallis had been so long practically independent in the South that he assumed not only the right to shape his own policy but adopted a certain tartness in his despatches to Clinton, his superior. When now, in this tone, he urged Clinton to abandon New York and join him Clinton's answer on the 26th of June was a definite order to occupy some port in Virginia easily reached from the sea, to make it secure, and to send to New York reinforcements. The French army at Newport was beginning to move towards New York and Clinton had intercepted letters from Washington to La Fayette revealing a serious design to make an attack with the aid of the French fleet. Such was the game which fortune was playing with the British generals. Each desired the other to abandon his own plans and to come to his aid. 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. Washington had urged in January that France should plan to have at least temporary naval superiority in American waters, in accordance with Rochambeau's principle, "Nothing without naval supremacy." Washington wished to concentrate against New York, but the French were of a different mind, believing that the great effort should be made in Chesapeake Bay. There the British could have no defenses like those at New York, and the French fleet, which was stationed in the West Indies, could reach more readily than New York a point in the South.