With but 55,000 troops in hand and surrounded by the united Austrian and Russian armies aggregating a quarter of a million men; Frederic the Great availing of a swamp, a few hills, a rivulet and a fortified town, constructed a battlefield upon which his opponents dared not engage him. This famous camp of Bunzlewitz is one of the wonders of the military art. It also is an illustration of the inability of the Anglo-Saxon to reason; for to this day many who wear epaulets, accepting the dictum of a skillfully hoodwinked French diplomat at the siege of Neisse, (Dec., 1740) commonly assert that “the great Frederic was a bad engineer.” * * * * * Washington compelled the British to evacuate Boston, merely by occupying with artillery Dorchester Heights, the tactical key of the theatre of action and thus preventing either ingress or egress from the harbor. * * * * * At Trenton the Hessian column was unable to escape from Washington’s accurate evolutions, on account of being imprisoned in an angle formed by the unfordable Delaware river. * * * * * At Yorktown, the British army under Lord Cornwallis was captured entire, being cut off from all retreat by the ocean on the right flank and the James river in rear. * * * * * Bonaparte made his reputation at Toulon (1793) merely by following the method employed by Washington in the siege of Boston. * * * * * Bonaparte gained his first success in Italy because the allied Piedmontese and Austrian armies, although thrice his numbers, were separated by the Apennine mountains. * * * * * Bonaparte’s success at Castiglione was due to the separation of the Austrian army into two great isolated columns by the Lake of Garda. * * * * * At Arcola, Bonaparte occupied a great swamp upon the hostile strategic center and the Austrian army was destroyed by its efforts to dislodge him. * * * * * At Rivoli, the Austrian army purposed to unite its five detached wings upon a plateau of which Bonaparte was already in possession. All were ruined in the effort to dislodge the French from this Tactical Center. * * * * * The Austrian army was unable to escape after Marengo on account of the Po river in its rear. * * * * * At Austerlitz the left wing of the Austro-Russian army was caught between the French army and a chain of lakes and rivulets and totally destroyed. * * * * * At Friedland the Russian army was caught between the French in front and the Vistula river in rear and totally destroyed. * * * * *