General William Tecumseh Sherman

In 1865, he 'reinvented' warfare, reasoning that it would never be enough to kill men who were willing to die on the battlefield. Only when the war was taken into the civilian population supporting the enemy would the spirit for the war be broken. His 'March to the Sea' was a triumph for the Union, but hated in states such as Georgia and South Carolina, the latter suffering particular hardship because they had seceded first.