The struggle over the fortified Confederate position known as Spotsylvania's Mule Shoe was without parallel during the Civil War. A Union assault that began at 4:30 A.M. on May 12, 1864, sparked brutal combat that lasted nearly twenty-four hours. By the time Grant's forces withdrew, some 55,000 men from Union and Confederate armies had been drawn into the fury, battling in torrential rain along the fieldworks at distances often less than the length of a rifle barrel. One Union private recalled the fighting as a "seething, bubbling, soaring hell of hate and murder."

During the late summer of 1862, Confederate forces attempted a three-pronged strategic advance into the North. The outcome of this offensive, the only coordinated Confederate attempt to carry the conflict to the enemy, was disastrous. The results at Antietam and in Kentucky are well known; the third offensive, the northern Mississippi campaign, led to the devastating and little-studied defeats at Iuka and Corinth, defeats that would open the way for Grant's attack on Vicksburg.

On to Petersburg follows the Union army's movement to the James River, the military response from the Confederates, and the initial assault on Petersburg, which Rhea suggests marked the true end of the Overland Campaign. Beginning his account in the immediate aftermath of Grant's three-day attack on Confederate troops at Cold Harbor, Rhea argues that the Union general's primary goal was not - as often supposed - to take Richmond, but rather to destroy Lee's army by closing off its retreat routes and disrupting its supply chain.

Operating in the vast and varied trans-Appalachian west, the Army of Tennessee was crucially important to the military fate of the Confederacy. But under the principal leadership of generals such as Braxton Bragg, Joseph E. Johnston, and John Bell Hood, it won few major battles, and many regard its inability to halt steady Union advances into the Confederate heartland as a matter of failed leadership.

James Longstreet's countermarch and Samuel Johnston's morning reconnaissance are two of the most enigmatic events of the Battle of Gettysburg. Both have been viewed as major factors in the Confederacy's loss of the battle and, in turn, the war. Yet much of it lies shrouded in mystery. Recognizing the multitude of factors that affect human memory, In the Shadow of the Round Tops explores how the individual soldiers experienced, remembered, and wrote about the battle, and how those memories have created a cloud over James Longstreet's countermarch and Samuel Johnston's reconnaissance.