Seven Pines

Fought on May 31 and June 1, 1862, in Henrico County, Virginia, the clash known as Seven Pines, or alternatively Fair Oaks or Fair Oaks Station, formed part of the Peninsula Campaign during the Civil War. By late May, McClellan's Army of the Potomac had pushed up the Virginia Peninsula until it stood at the edge of Richmond, the Confederacy's capital city. Sensing an opportunity, Confederate commander Joseph E. Johnston struck on May 31, hoping to crush two Union corps that seemed cut off south of the Chickahominy River.

Though the Confederate attacks lacked coordination, they still managed to push the IV Corps backward while inflicting severe losses. As the fighting escalated, both armies funneled additional troops into the struggle. Federal lines held firm once reinforcements arrived, bolstered by the III Corps and by Sedgwick's division from Sumner's II Corps, which made its way across the swollen river using Grapevine Bridge.

During the engagement, Johnston suffered a serious wound, leaving G.W. Smith to take temporary command of Confederate forces. When fighting resumed on June 1, Confederate troops pressed forward again, but Union defenders, strengthened by fresh reinforcements, held their ground, leaving the Confederates with little to show for their efforts. Each side afterward claimed the victory as its own.

Despite ending without a clear tactical result, this engagement stood as the largest fought in the Eastern Theater to that point in the war, trailing only Shiloh in total casualties, which numbered roughly 11,000 combined. Johnston's wound carried consequences far beyond the battlefield itself, since it opened the way for Lee to take charge of Confederate forces. Lee's more combative approach soon produced the Seven Days Battles, forcing a Union withdrawal by late June. In this sense, Seven Pines represented the nearest approach Union soldiers would make toward Richmond until the war's final stages.

Background

Facing pressure from McClellan's advancing force, Johnston pulled his 75,000 troops back from the Virginia Peninsula toward Richmond, the Confederate capital. He anchored his defenses at Drewry's Bluff on the James River, the site of a recent naval win for the Confederates, then curved his line counterclockwise, placing his center and left behind the Chickahominy River. In springtime this waterway turned the ground east of Richmond into swampland, giving Johnston a natural shield. His troops destroyed nearly every bridge crossing the Chickahominy and dug into fortified ground north and east of the city.

McClellan, commanding 105,000 men, concentrated his forces on the north

Johnston's plan

Having pulled his forces back up the Peninsula until they sat just outside Richmond, Johnston understood that a prolonged siege would doom his army, so he resolved instead to strike at McClellan. At first he intended to hit the Union right flank on the north side of the Chickahominy River, hoping to act before McDowell's corps could reach the area on its march south from Fredericksburg. That plan changed on May 27, the very day fighting broke out at Hanover Court House northeast of Richmond, when Johnston discovered that McDowell's corps had been redirected into the Shenandoah Valley and would not be joining the Army of the Potomac after all. With that threat removed, he abandoned the idea of crossing the Chickahominy, the natural barrier that protected his position, and instead set his sights on the two Union corps positioned south of the river, cut off as they were from the three corps stationed north of it.

Carried out properly, the scheme would throw roughly three quarters of Johnston's army, twenty-two of twenty-nine infantry brigades totaling about 51,000 soldiers, against the 33,000 men making up the Union III and IV Corps. The design itself was intricate. A. P. Hill's and Magruder's divisions were tasked with a light engagement meant only to keep Union troops north of the river occupied, while the real blow would fall south of the river under Longstreet's direction. His assignment was to close in on Keyes's position from three separate directions: six brigades directly under his command and four under D. H. Hill would move along different roads toward a junction called Seven Pines, so named for a cluster of seven large pine trees growing there, while three brigades led by Huger would back up Hill's right flank, and Whiting's division would trail behind Longstreet's column in reserve. This arrangement seemed promising at the outset, since the most exposed Union division, holding earthworks a mile west of Seven Pines, belonged to Brig. Gen. Silas Casey and consisted of 6,000 troops who

Battle

On May 31, the offensive stumbled from its opening moments when Longstreet's march down the Charles City Road brought him onto the Williamsburg Road rather than the Nine Mile Road as planned. Huger had received no specific starting time in his instructions, and nothing roused him until he heard troops moving past nearby. Meanwhile Johnston and Smith, his deputy, lingered at headquarters uncertain of Longstreet's whereabouts or the delay affecting Huger, waiting for signs that combat had commenced. Growing impatient five hours past the intended hour, D.H. Hill finally pushed his brigades forward against Casey's division at one o'clock.

Roughly ten thousand men under Hill surged from the treeline. Out front, serving as a heavy skirmish screen, stood the 100th and 81st New York, and Hill's charge simply overran them. Casey's inexperienced troops wavered, some falling back, yet others clung stubbornly to their fortifications, and losses mounted steeply on both sides. Only four of the thirteen Confederate brigades poised on that flank actually joined the fight, so the full weight available against this vulnerable stretch of Union line went unused. Casey pleaded urgently for reinforcement, but Keyes was sluggish in reacting. Eventually the Confederate numbers proved overwhelming, a redoubt fell, and Casey's survivors pulled back to the secondary defenses at Seven Pines. Throughout this stretch, neither army's top general grasped how serious things had become. Even at half past two, Heintzelman, reporting to a bedridden and ill McClellan, said he had heard nothing from Keyes. Though positioned barely two and a half miles from the action, Johnston remained oblivious, his hearing of the guns blocked by an acoustic shadow, so that he and his staff did not realize fighting had started until four o'clock. Having held the line alone with his four brigades for close to four hours, Hill appealed to Longstreet for support, but only Richard Anderson's brigade was dispatched forward. In the brutal struggle near Seven Pines, Brig. Gen. Robert Rodes fell wounded, and Col. John B. Gordon of the 6th Alabama, later to become a major general, stepped into command of Rodes's brigade. Nearly every officer in the 6th Alabama was struck down, yet Gordon himself emerged unhurt despite bullets tearing through his clothing and canteen. At one point Gordon spotted his brother Augustus, only nineteen and a captain in the regiment, lying among the dead and dying with a chest wound, but the raging battle allowed no chance to pause and help him (Augustus would eventually recover). Rodes's brigade as a whole suffered losses exceeding half its numbers. Brig. Gen. Gabriel Rains, only days from turning fifty-nine and among the eldest officers serving in the Army of Northern Virginia, was also wounded, and leadership of his brigade fell to Col. Alfred Colquitt of the 6th Georgia, who would later be confirmed as its permanent commander.

Accompanying the Army of the Potomac was the Union's Balloon Corps under Prof. Thaddeus S. C. Lowe, who maintained two launch sites north of the river, at Gaines's Farm and at Mechanicsville. On May 29, Lowe had noted a buildup of Confederate strength near New Bridge and close to the Fair Oaks depot. Persistent rain on the thirtieth and strong winds the following morning kept his balloons, the Washington and the Intrepid, grounded until noon. Once aloft, Lowe watched Confederate units maneuvering in battle order, and word of this reached McClellan's headquarters verbally by two that afternoon. Through the rest of May 31, Lowe kept transmitting updates from the Intrepid by telegraph. The next day, June 1, he noted that no smoke rose from Confederate barracks positioned left of Richmond. McClellan chose not to act on this intelligence by launching a counterattack with his corps stationed north of the Chickahominy.

By approximately one o'clock, Hill,