On September 23, the Confederate siege of Chattanooga began. The trapped Rosecrans needed help, and Lincoln attempted to find a way to send him reinforcements, debating the best way to do this with Halleck and Stanton. The secretary of war proposed to send soldiers from Meade’s army by railroad. He said that 20,000 troops could be moved in a few weeks–Halleck said such an operation would more likely take a few months.

Subscribe Today

• Did you enjoy our article?
• Read more in America's Civil War magazine
• Subscribe online and save nearly 40%!!!
 

The two-hour debate ended with Lincoln accepting Stanton’s proposal, and soon the efficiency of the Union railroad system was proven when more than 15,000 men quickly arrived in the vicinity of Chatta-nooga to augment Rosecrans’ force.

By mid-October, Lincoln had decided that a change in the command system in the West was in order. Grant was promoted to head a unified command that included most of the armies and departments from Tennessee westward. Lincoln gave Grant authority to retain or relieve Rosecrans. Grant chose the latter, replacing the lethargic general with Maj. Gen. George H. Thomas. Grant then proceeded to Chattanooga to take personal command of the efforts to break the siege.

The siege of Chattanooga was broken on October 30 when a small supply line–dubbed the Cracker Line–was opened into the city. Between November 23 and 25, the Union armies under Grant at Chattanooga launched a concerted offensive to clear the Confederates from around the city that ended with Bragg’s army in full retreat southward to Georgia.

By the end of 1863 it was clear to Lincoln that in Grant he had found the aggressive commander he had been seeking since the beginning of the war. In March 1864 Lincoln promoted Grant to lieutenant general, and appointed him general in chief of the Union armies. From this point until the end of the war, the president would no longer actively manage military matters. Having Grant at the helm saved the president time and energy.

The course of events in 1863 had forced Lincoln to become an active commander in chief. It is hard to imagine generals such as Rosecrans ever moving without pressure from above. On all fronts except Grant’s, inaction might have remained the order of the day if not for the president’s vigorous involvement in the prosecution of the war. Perhaps there might not have been the Union defeats at Chancellorsville and Chickamauga, but there might not have been the Union victories at Gettysburg, Vicksburg or Chattanooga, either.

After 1863 the Confederacy’s main armies would undertake no more major offensives, and the Southern bid for a separate, independent nation would fail. Had it not been for Lincoln’s active management of military affairs and steady prodding of his commanders, the outcome of the Civil War and the history of the United States would likely have been very different.

For more great articles be sure to subscribe to America’s Civil War magazine today!

Help HistoryNet by bookmarking to