Final answer:
The purpose of Sherman's March to the Sea was to weaken the Confederate forces, and the outcome was destruction and devastation.
Step-by-step explanation:
The purpose and outcome of Sherman's March to the Sea was to weaken the Confederate forces and cause destruction and devastation. General Sherman believed that demoralizing the Confederates was crucial to defeating them quickly. As they marched across Georgia, Sherman's Union army destroyed railroads, raided and burned plantations and farms, and cut a swath of destruction towards Savannah.