Statistics for occurrence #1 of “Fort Frontenac” in chapter 9 of 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.:

... Fort Frontenac
In discussing engineering as a branch of the military art, we spoke of the use of fortifications on land frontiers, and the...
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