- The Union had a series of inept generals who lost battles and failed to follow Lincoln's orders. One of the exceptions was General Ulysses S. Grant. He led successful offensives at Vicksburg and along the Mississippi River. Another successful Union general was William Tecumseh Sherman Sherman's famous March to the Sea across Georgia and through Atlanta ravaged and destroyed the land. As Sherman himself noted, "we devoured the land." One of the most important men of the Confederacy was Robert E. Lee. He was a brilliant general who won a series of battles in which his troops were vastly outnumbered. Stonewall Jackson was a leader of Confederate troops under Lee, Jefferson Davis was president of the Confederacy for the duration of the Civil War. Davis failed to create a position for a general-in-chief to coordinate strategy until 1865. Some argue that this cost the Confederacy the war. According to the text, what do some people believe was the reason the South lost the Civil War? A Robert E. Lee was an inept general. B. President Jefferson Davis did not appoint a general-in-chief. C. The Unions march to the sea destroyed the D. General Ulysses S. Grant was an exceptional general. ​