The experience, however, was enough to fully satisfy Frederic, and never again did he attempt a Logistic battle. * * * * * The capture of Lord Cornwallis at Yorktown is perhaps the nearest approach to the achievement of Nero and Livius in the annals of the military art. Decoyed by the retrograde movements of Gen. Greene, the British army was deluded into taking up a position at Yorktown, having the unfordable James River in rear, and within striking distance of the main American army under Washington about New York City. Lafayette was ordered to reinforce Greene; Count d’Esting was induced to bring the French fleet from the West Indies to Chesapeake Bay to prevent the rescue of Cornwallis by British coming by the ocean, and Count Rochambeau was requested to join Washington with the French army then in Rhode Island. All this took time, but everything was executed like clockwork. The French fleet arrived in the Chesapeake; the next day came a British fleet to rescue the Earl’s army. In the naval fight which ensued, the British were driven to sea and so damaged as to compel their return to New York. By a swift march, Washington, with his Continentals and the French, joined Greene and Lafayette, and two of his redoubts being taken by storm, Lord Cornwallis surrendered. This victory established the independence of the American Colonies. * * * * * The Logistic Battle, _i.e._, the combination of the Columns of Attack and of Support was first favorite with Napoleon and to his partiality for this particular form of the tactical offensive was due both the spectacular successes and the annihilating catastrophes which mark his astonishing career. The retrieving of his lost battle of Marengo, by the fortuitous arrival of Dessaix column, seems to have impressed Napoleon to the extent that he ever after preferred to win by such process, rather than by any other. The first attempt to put his new hypothesis into practice was at Jena. Single handed his column of attack destroyed the Prussian main body, while Davoust with the column of manoeuvre held in check over three times his numbers. The French Column of Support under Bernadotte did not arrive in season to fire a shot. * * * * * At Eylau, the French Column of Support under Davoust was four hours in advancing six miles against the opposition of the Russian general Doctoroff. The second French Column of Support under Ney did not reach the field until the battle was over. * * * * * In the retreat from Russia, the French Column of Support under the Duke of Belluno was driven from its position at Smolensko, thus permitting the Russians under Kutosof to occupy the Strategic center, which disaster cost Napoleon 30,000 men in clearing his communications. * * * * *