 Complete the following phrase:  He did not return to command until September, following the Battle of Antietam, when he was given command of a division in the Right Wing of the Army of Northern Virginia, in the command of Major General James Longstreet, which became the I Corps that December. His division was lightly engaged at the Battle of Fredericksburg and, along with most of Longstreets Corps, missed the Battle of Chancellorsville while participating in the 