After daring Sherman to leave Atlanta, and declaring that he would suffer the fate of Napoleon in Russia, Confederate forces wilted. The luminaries of the Confederacy — Generals Bragg, Hardee, and Hood — pled numerical inferiority and usually avoided the long Northern snake that wound through the Georgia heartland. Sherman’s army had been pared down of its sick and auxiliaries, but was still huge, composed of Midwestern yeomen who liked camping out and were used to living off the land. Post-harvest Georgia was indeed rich, and Sherman’s more than 60,000 marchers soon learned that they could live off the land in richer style than they ever had while occupying Atlanta. In their wake, they left a 300 mile-long, 60 mile-wide swath of looting and destruction from Atlanta to Savannah.

Yet there was a method to Sherman’s mad five-week march. He burned plantations, freed slaves, destroyed factories, and tore up railroads—but more or less left alone the farms and small towns of ordinary Southerners. His purposes were threefold: to punish the plantation class, the small minority of Confederates who owned slaves, as the culprits for the war; to destroy the Southern economy and remind the general population, as Sherman put it, “that war and individual ruin were now to be synonymous”; and to humiliate the Confederate military, especially what he called the cavalier classes that boasted of their martial audacity but would not dare confront such a huge army of battle-hardened troopers from Illinois, Indiana, Iowa, Michigan, and other Midwestern states. In this context, the message was not lost: Unionists were not just New England Yankee manufacturers, but farmers who did their own hard work in harsh, cold lands more challenging than temperate Georgia; material advantages and repeating rifles were not antithetical to martial audacity, as a Michigan farmer with a Sharps rifle was more than a match for a plumed Southern cavalryman who boasted of killing Yankees.

Sherman was hated not so much because he killed Southerners: in comparison to Grant’s bloodbath in northern Virginia, probably less than 1,000 Confederates were killed during the March to the Sea. Rather, he humiliated the South by having supposedly less-audacious Northerners taunting the South to attack them on their own turf, and exposing the plantation class as hollow, showing them more willing to flee their rich and hitherto untouched plantations than to die while protecting them.