When Lt. Gen. James Longstreet was wounded during a friendly - fire incident in the Wilderness , Field briefly assumed command of the First Corps .
He was later replaced by Maj. Gen. Richard H. Anderson , who had more seniority and combat experience .
When Lt. Gen. James Longstreet was wounded during a friendly - fire incident in the Wilderness , Field briefly assumed command of the First Corps , but he was later replaced by Maj. Gen. Richard H. Anderson , who had more seniority and combat experience .