The Battle of Seven Pines, also known as the Battle of Fair Oaks or Fair Oaks Station, took place on May 31 and June 1, 1862, in Henrico County, Virginia as part of the Peninsula Campaign of the American Civil War. The Union's Army of the Potomac, commanded by Maj. Gen. George B. McClellan, had moved up the Virginia Peninsula, reaching the outskirts of Richmond, the Confederate capital. On May 31, Confederate General Joseph E. Johnston attempted to overwhelm two Federal corps that appeared isolated south of the Chickahominy River.
The Confederate assaults, although poorly coordinated, succeeded in driving back the IV Corps and inflicting heavy casualties. Reinforcements arrived, and both sides fed more and more troops into the action. Supported by the III Corps and Maj. Gen.