About Gettysburg The nineteenth century was an era of great technological change that extremely changed the scope of tactics and strategy, the alteration was seen in what has been called "the first total war, the U.S. Civil." The consistent aid of war industry became crucial. The new tactical firepower created growth in accuracy and range of rifle. This caused many problems for example, placement of the artillery had to be moved back further behind the lines, and troops had begin fighting from trenches rather then an all out charge. More involved strategies and tactics became possible through the use of telegraph communications. "During the U.S. Civil War the large-scale strategy of