sides and was not strong enough to derail the offensive planned by Robert E. Lee, which already had been set in motion. The next day, Lee seized the initiative by attacking at Beaver Dam Creek north of the Chickahominy River, near Mechanicsville, the first major battle of the Seven Days, and the beginning of a strategic retreat by the Union Army. See also Troop engagements of the American Civil War, 1862 List of costliest American Civil War land battles Richmond in the Civil War Virginia in the American Civil War List of American Civil War battles List of Virginia Civil War units Notes References Eicher, David J. The Longest Night: A Military History of the Civil War. New York: Simon & Schuster, 2001. . Kennedy, Frances H., ed. The Civil War Battlefield Guide. 2nd ed. Boston: Houghton Mifflin Co., 1998. . Salmon, John S. The Official Virginia Civil War Battlefield Guide. Mechanicsburg, PA: Stackpole Books, 2001. . Sears, Stephen W. To the Gates of Richmond: The Peninsula Campaign. New York: Ticknor and Fields, 1992. . National Park Service battle description CWSAC Report Update Further reading Burton, Brian K. Extraordinary Circumstances: The Seven Days Battles. Bloomington: Indiana University Press, 2001. . Burton, Brian K. The Peninsula & Seven Days: A Battlefield Guide. Lincoln: University of Nebraska Press, 2007. . External links Seven Days Campaign of 1862: Maps, histories, photos, and preservation news (Civil War Trust) Animated history of the Peninsula Campaign Oak Grove Oak Grove Oak Grover Oak Grove Henrico County in the American Civil War 1862 in the American Civil War 1862 in Virginia June 1862 events