It is interesting to compare the tactical features of the campaign of 1866 with those of our own war. The necessity of launching upon the points assailed a succession of attacks was recognized in the tactical disposition frequently made, during the War of Secession, in which the assaulting divisions were drawn up in three lines of brigades, at distances of about 150 yards, the leading brigade being preceded by one, or sometimes two, lines of skirmishers.[17] The skirmishers being reinforced by, and absorbed in, the first line, the latter, if checked, being reinforced and pushed forward by the second, and the third line being similarly absorbed, the assaulting force, at the moment of collision, generally consisted of all the successive lines merged into one dense line. This formation was the outgrowth of bitter experience in attacking in column, though the attack with battalions ployed in close column had not altogether disappeared in 1864.[18] In comparison with the beautiful tactics by which the Germans now attack, with a firing line constantly reinforced from supports and reserves kept in small columns for the double purpose of obtaining the greatest possible combination of mobility and shelter, the attack formation used in the Civil War seems far from perfect; but it was certainly superior to the Prussian attack formation of 1866, for it recognized the hopelessness of attacks in column, and provided for the successive reinforcement of an attacking line. General Sherman, in describing the tactics in use in his campaigns, says: “The men generally fought in strong skirmish lines, taking advantage of the shape of the ground, and of every cover.” Dispositions being, of course, made for the constant reinforcement of these lines, we find Sherman’s army habitually using tactics embracing the essential features of the German tactics of the present day.[19]