From May 31-June 12, 1864, more than 160,000 men clashed at Cold Harbor, Virginia, during the Wilderness Campaign. The 5th, 6th, 7th and 36th Wisconsin Infantry regiments took part. By June 4, both sides were dug in about nine miles from Richmond. "We are still hiding away from bullets of rebel sharpshooters," Col. Rufus Dawes wrote to his wife. "The line of works where we are is very crooked and we get bullets and artillery shots from nearly all points of the compass."