the way, since you asked, yes, he was one of the ancestors of the rock star astrophysicist, neil de grasse tyson. he was landing his feet when the british fleet under thomas graves appeared. he defeated graves -- or rather drove him off. and once that happened, british forces at yorktown could neither be resupplied nor evacuated and that sealed their fate. the story of yorktown is pretty well known. the troops were led on a short quick march, surrounded yorktown, laid siege for five days. and that siege was directed by french officers, who also directed the trenches, the gunfire. and it was the french also lost twice as many men as the americans. so when charles o'hara, who was co cornwallis came out and saw it as a french victory. o'hara was directed to washington, washington would not take a surrender from somebody el else's second in command so he gave him to benjamin lincoln, his own second in command. the battle was over but the war was not. i just said the war was a world war. by the time yorktown was fought, britain was fighting five separate nation states and they we were overwhelmed. al