Because he did not feel confident of being able to pursue and destroy the Army of Tennessee in difficult mountain country (as ordered by Grant), while his long supply-line was so vulnerable.
That was why he devised the alternative plan - make punitive raids on the Georgia farms, starve the Confederate armies, meanwhile live off the land, forget the supply-line, and wreck the railroads to ruin the Confederate economy, before finally liberating the blockade-runners' port of Savannah.
who won the sherman's march on georgia?
Sherman
Georgia
Sherman's March to the Sea was through Georgia, and then continued up through the Carolinas.
General Sherman---- Sherman's March to the Sea
Georgia
It is frequently called "Sherman's March to the Sea".
Across Georgia - from Atlanta to Savannah.
William T. Sherman
Freed slaves followed the march of Sherman's army through Georgia.
It was called the March to the Sea.
It was called the March to the Sea.