 Complete the following phrase:  At Chancellorsville, Johnston was given command of the 12th North Carolina Infantry, after that unit had lost all of its field officers. He returned to the 23rd for the Gettysburg Campaign and was wounded at the Battle of Gettysburg. He was promoted to brigadier general on September 1, 1863, and was given command of the brigade that Brig. Gen. Alfred Iverson, Jr., had commanded at Gettysburg. He commanded the brigade through the Overland Campaign in the spring of 1864 until he suffered his third wound at 