 Complete the following phrase:  The Congress passed legislation in May 1864 to allow for temporary general officers in the PACS, to be appointed by President Jefferson Davis and confirmed by the C.S. Senate and given a non-permanent command by Davis. Under this law, Davis appointed several officers to fill open positions. Richard H. Anderson was appointed a temporary lieutet general on May 31, 1864, and given command of the First Corps in the Army of Northern Virginia commanded by Gen. Lee following the wounding of Lees second-in-command, Lt. Gen. James Longstreet on May 6 in the Battle of the Wilderness. With Longstreets return that October, Anderson reverted to a major general. Jubal Early was appointed a temporary lieutet general on May 31, 1864, and given command of the Second Corps following the reassignment of Lt. Gen. Richard S. Ewell to other duties and led the Corps as an army into the third Southern invasion of the North in July 1864 with battles at the 