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Harper's Encyclopedia of United States History (ed. Benson Lossing) 22 0 Browse Search
Historic leaves, volume 2, April, 1903 - January, 1904 4 0 Browse Search
Varina Davis, Jefferson Davis: Ex-President of the Confederate States of America, A Memoir by his Wife, Volume 1 2 0 Browse Search
H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia. 2 0 Browse Search
George Meade, The Life and Letters of George Gordon Meade, Major-General United States Army (ed. George Gordon Meade) 2 0 Browse Search
Frank Preston Stearns, Cambridge Sketches 2 0 Browse Search
Laura E. Richards, Maud Howe, Florence Howe Hall, Julia Ward Howe, 1819-1910, in two volumes, with portraits and other illustrations: volume 1 2 0 Browse Search
George P. Rowell and Company's American Newspaper Directory containing accurate lists of all the newspapers and periodicals published in the United States and territories, and the dominion of Canada, and British Colonies of North America, together with a description of the towns and cities in which they are published: description of towns and cities. (ed. George P. Rowell and company) 2 0 Browse Search
George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 5, 13th edition. 2 0 Browse Search
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Browsing named entities in H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia.. You can also browse the collection for Saint Lawrence River (New York, United States) or search for Saint Lawrence River (New York, United States) in all documents.

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H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia., Chapter 2: Strategy.—General divisions of the Art.—Rules for planning a Campaign.—Analysis of the military operations of Napoleon (search)
especially when strengthened by natural and artificial obstacles, such as chains of mountains, rivers, lines of fortresses, &c., are regarded as permanent lines of defence. The Alpine range between France and Piedmont, with its fortified passes; the Rhine, the Oder, and the Elbe, with their strongly-fortified places; the Pyrenees, with Bayonne at one extremity and Perpignon at the other; the triple range of fortresses on the Belgian frontier — are all permanent lines of defence. The St. Lawrence river is a permanent line of defence for Canada; and the line of lake Champlain, the upper St. Lawrence, and the lakes, for the United States. Temporary lines of defence are such as are taken up merely for the campaign. Napoleon's position in Saxony, in 1813; the line of the allies in Belgium, in 1815; the line of the Marne, in 1814, are examples of temporary lines of defence. It will be seen from these remarks that lines of defence are not necessarily bases of operation. Strategic