. The photographic history of the Civil War : in ten volumes . FORMIDABLK IT ELI) WORKS I\ AX AI)\ AXCF, Copifriffht htf Pnlnnl Pub. NEW NECESSITIES OF WARFARE The increased deadliness of firearms taught the eommanders in the Civil War the habit of greatly strengthening every new positionoccupied with earthworks as formidable as possible. The works in the upper picture were thrown up in a night by the Federals nearNorth Anna River, Virginia, in 186-1. It is apparent how they would strengthen the resistance of a small force to larger numbers whomight advance across the open upon the positi

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. The photographic history of the Civil War : in ten volumes . FORMIDABLK IT ELI) WORKS I\ AX AI)\ AXCF, Copifriffht htf Pnlnnl Pub. NEW NECESSITIES OF WARFARE The increased deadliness of firearms taught the eommanders in the Civil War the habit of greatly strengthening every new positionoccupied with earthworks as formidable as possible. The works in the upper picture were thrown up in a night by the Federals nearNorth Anna River, Virginia, in 186-1. It is apparent how they would strengthen the resistance of a small force to larger numbers whomight advance across the open upon the position. In the lower picture we see the salient of Fort Hell, with its ditch and abattisand breastworks constructed of gabions, the result of many days work of the soldiers in anticipation of attack. This was one of thefortifications about Petersburg, where the construction of fieldworks was developed to the highest point of efficiency.

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Keywords: ., bookauthormillerfrancistrevelya, bookcentury1900, bookdecade1910