The Battle of Seven Pines. The Most Consequential Days of the Civil War. May 31 - June 1, 1862

The Battle of Seven Pines (or Fair Oaks, depending on the account), part of the Peninsula Campaign, marks one of the most consequential days of the American Civil War. Confederate Commander of the Army of Northern Virginia, Joseph E Johnson, was severely wounded. Jefferson Davis appointed his own military advisor, Robert E Lee, as Johnson’s replacement.

The battle could have been, should have been, a resounding Confederate success. Union General George McClellan was making a methodical push towards Richmond, moving east to west up the Virginia Peninsula, his army astride the Chickahominy River. Three of McClellan’s five corps sat on the north bank. Two Corps sat on the south bank. What Southerners knew, which McClellan didn’t, was that the Chickahominy ran high in the Spring and the two corps on the southern side of the river were nearly isolated from the rest of the Union Army. Meanwhile, all of Johnson’s strength was south of the river. Johnson sought to concentrate his forces against the Union forces south of the river and destroy them before Union assistance could cross the river with support. It was a solid idea.

Unfortunately, it was poorly planned or poorly executed. (Again, depending on the account.)

Johnson’s orders were to have James Longstreet in overall command of the action. This ruffled some feathers as he was technically junior to others in the field. Worse, Johnson’s orders were not committed to writing, and his understanding of his Army’s movement to contact did not square with Longstreet’s. To be fair, it was a complex movement plan. And complicated by the thorny seniority issues. The problem arose from which road should be used by which unit. It seems that Johnson’s idea was to have Longstreet, commanding the main attack south of the river, converge on the Union forces from three directions: six brigades under Longstreet's immediate command and four brigades under D.H. Hill were to advance on separate roads to a crossroads known as Seven Pines. Apparently, Johnson’s instructions to Longstreet were verbal, given in a long meeting on the 30th. Whether Longstreet didn’t understand Johnson’s intent or chose to make alterations on his own, or if Johnson tried to rewrite history later to cover his own errors, remains an open question. (Longstreet had route issues again on Day 2 of Gettysburg.) What is certain is that both Longstreet and Hill ended up on the same road. A road turned into a quagmire by the rains. This delayed the attack for hours and, when it kicked off, the blow fell on a narrow front with only four of the thirteen Confederate brigades engaged.

Johnson might have asserted some control over the situation, but because of some trick of acoustics - “the unfavorable condition of the air to sound” - he could not hear the battle underway barely 2.5 miles from his headquarters. Eventually he sent a staffer to investigate the delay, only to have the officer report back that the Army was heavily engaged. Johnson travelled down the Nine Mile Road to have a look. Nine Mile Road was the road on which he expected to find Longstreet’s logistics trains. (If Longstreet’s brigades had taken Nine Mile, they would have landed squarely on the Union’s lightly guarded right flank early in the morning. It’s hard to imagine their surprise being other than total.) Instead, Nine Mile Road was mostly empty, and Johnson and his staff were able to ride to “within a few paces of our line,” where he sat “for some time looking intently to the front.” At some point, “a tremendous fire with musketry and artillery” opened, and the group “rode back about two hundred yards to an elevated position near a small house.” Although somewhat removed from the front lines, this position was still well within reach of Yankee rifles and artillery. After only a minute or two, “the general was struck in the right shoulder by a bullet, and a moment after that a shell exploded directly in front of him and a large fragment slammed into his chest with force enough to knock him off his horse.”

It was a serious wound. Johnson was carried away from the field and wouldn't return to duty for six months. He’d lose command of the Army of Northern Virginia to Lee for good.

On June 1st, the Confederates renewed their attacks, but the opportunity was gone. Union reinforcements had finally arrived from north of the river, and there was now a solid blue line of resistance. Both sides claimed victory. Call it a draw. McClellan continued to plan for a siege of Richmond, but his movement up the Peninsula came to a halt. He never regained an offensive posture. Lee used the lull to strengthen and expand the defenders of Richmond, earning the nickname “The King of Spades.” A few weeks later, McClellan’s Peninsular plans were ended by Lee’s aggressive “Seven Days” campaign. Seven Pines was as close as the Union would get to Richmond for most of the rest of the war. And Lee’s leadership would carry Confederate fortunes further than one would have expected.