- Date
- June 27, 1862
- Location
- Hanover County, Virginia
- Result
- Confederate victory
- Part of
- American Civil War
- Conflict
- U.S. Civil War
About the battle
The Battle of Gaines' Mill, also known as the Battle of Chickahominy River, took place on June 27, 1862, in Hanover County, Virginia, as the third of the Seven Days Battles which together decided the outcome of the Union's Peninsula Campaign of the American Civil War. Following the inconclusive Battle of Beaver Dam Creek (Mechanicsville) the previous day, Confederate General Robert E. Lee renewed his attacks against the right flank of the Union Army, relatively isolated on the northern side of the Chickahominy River. There, Brig. Gen. Fitz John Porter's V Corps had established a strong defensive line behind Boatswain's Swamp. Lee's force was destined to launch the largest Confederate attack of the war, about 57,000 men in six divisions. Porter's reinforced V Corps held fast for the afternoon as the Confederates attacked in a disjointed manner, first with the division of Maj. Gen. A.P.
From the Wikipedia article “Battle of Gaines' Mill”, CC BY-SA 4.0. Result, date and location from the article’s infobox and Wikidata.

