The following text is taken from http://www.mooresvillehistory.com/. This is a poor website but it does have a good synopsis of Sherman’s Carolina Campaign and the Battle of Bentonville (North Carolina).
The Battle of Bentonville, fought March 19-21, 1865, was the last full-scale action of the Civil War in which a Confederate army was able to mount a tactical offensive. This major battle, the largest ever fought in North Carolina, was the only significant attempt to defeat the large Union army of Gen. William T. Sherman during its march through the Carolinas in the spring of 1865.
Sherman Strikes into South Carolina
The year 1864 ended with Sherman’s grand army in possession of Savannah, Georgia, following its infamous “March to the Sea” from Atlanta to the coast. The fall of Atlanta assured the re-election of President Abraham Lincoln, and the outcome of the war was in favor of the Union. Ulysses S. Grant wanted Sherman’s army to unite with the Army of the Potomac, under Grant’s personal supervision in Virginia. Grant wanted Sherman’s men ferried by sea to the Virginia fighting front, where the combined Federal forces might deal a fatal blow to General Robert E. Lee’s Army of Northern Virginia.
But William T. Sherman had other ideas, and proposed a bold strike into the very heart of the Confederacy with 60,000 men—a march northward through the Carolinas. On Christmas Eve 1864, he explained to Grant:
I feel no doubt whatever as to our future plans. I have thought them over so long and well that they appear as clear as daylight. I left Augusta [Ga.] untouched on purpose, because the enemy will be in doubt as to my objective point . . . whether it be Augusta or Charleston [S.C.], and will naturally divide his forces . . . . [On the hypothesis of ignoring Charleston and taking Wilmington, I would then favor a movement direct on Raleigh. The game is then up with Lee.
Grant, who held his friend and subordinate Sherman in the highest esteem, replied on December 27:
Your confidence in being able to march up and join this army pleases me, and I believe it can be done. The effect of such a campaign will be to disorganize the South, and prevent the organization of new armies from their broken fragments . . . . If time is given, the fragments may be collected together and many of the [Confederate] deserters reassembled. If we can, we should act to prevent this . . . You may make your preparations to start on your northern expedition without delay. Break up the railroads in South and North Carolina, and join the armies operating against Richmond as soon as you can.
As Sherman gained a lodgment in South Carolina, Fort Fisher fell to a Federal amphibious assault on January 15, 1865. This effectively closed the port of Wilmington, North Carolina—the hub of the last major supply route to Lee’s army in Virginia. Wilmington itself would fall in February to the combined forces of Gen. Alfred H. Terry’s Provisional Corps and Gen. John Schofield’s XXIII Corps, hammering yet another nail into the coffin of the Confederacy. Grant’s orders to Schofield specified that “Your movements are intended as co-operative with Sherman through the States of South and North Carolina. The first point to be attained is to secure Wilmington. Goldsborough will then be your objective point.” Grant realized the importance of Goldsboro as the inland junction of the Wilmington & Weldon and Atlantic & North Carolina railroads. At least 425 miles of enemy territory lay between “Uncle Billy” and his ultimate destination in North Carolina, and a rendezvous there with Schofield and Terry.
William T. Sherman
Sherman’s army advanced on February 1, 1865, meeting little resistance as it marched northward. General P. G. T. Beauregard did in fact divide his Confederate forces to safeguard Charleston to the east, and Augusta, Georgia to the west. This unfortunate arrangement allowed Sherman’s minions to pass through the heart of South Carolina virtually unopposed, cutting a wide swath of destruction as they advanced. With the city of Columbia and much of the South Carolina countryside in ruins, only North Carolina lay between Sherman’s army and a junction with U. S. Grant’s army in Virginia. To make matters worse for the Southern war effort, the Army of Tennessee and other Confederate forces in the Carolinas were widely scattered. With Robert E. Lee’s army bogged down against Grant in the trenches of Petersburg, and Sherman’s force swiftly approaching from the south, it was a dire time for the Confederacy.
As general-in-chief of all Southern armies, Lee questioned General Beauregard’s ability to oppose the Federals. As the Union juggernaut continued northward, Lee appealed to the Confederate War Department for a replacement, explaining that he knew of no officer who had so much “the confidence of the army and people” as Gen. Joseph E. Johnston. Lee’s choice for the command was not a popular one with Confederate president Jefferson Davis, who deemed Joe Johnston a personal enemy.
In one of the great personality clashes of the Civil War, the troubled relationship between Davis and Johnston came to a head in mid-July 1864, during the Atlanta Campaign. Furious with Johnston for retreating before Sherman in Georgia instead of engaging him in a decisive battle, Davis promptly removed “Old Joe” from command of the Army of Tennessee. But the Confederate president counted few options as Sherman approached North Carolina, and with Lee’s earnest request Davis gave in and reluctantly allowed the general-in-chief to call upon Johnston for his services.
On February 22, 1865, Lee sent an urgent dispatch to his old friend Johnston, who had retired to Lincolnton, North Carolina:
Assume command of the Army of Tennessee and all troops in Department of South Carolina, Georgia, and Florida. Assign General Beauregard to duty under you, as you may select. Concentrate all available forces and drive back Sherman.
Though he felt the effort to stop Sherman had come too late, a weary Johnston methodically set out to collect the scattered array of Confederate forces at his disposal. The troop concentration he would effect in North Carolina on short notice, and the resulting battle at Bentonville, would stand in sharp contrast to the general’s earlier war record.