...fficult to secure concert of action where so much of the country was covered with forests and cut up by deeply trenched watercourses. Lee promptly ordered an attack on the new Federal position. A. P. Hill was sent along the main road from Mechanicsville to Cold Harbor, by way of Gaines' mill, while Longstreet was moved along a private road between the main road and the Chickahominy, nearly parallel to...