Editing Second Battle of Bull Run (section)

===Initial movements in the Northern Virginia Campaign===

[[File:Northern Virginia Campaign Aug7-28.png|thumb|upright=1.5|Northern Virginia Campaign, August 7–28, 1862 {{legend|#ff0000|Confederate}}
{{legend|#0000ff|Union}}
]]
[[File:WPMA01 Second Bull Run Campaign.jpg|thumb|upright=1.5|Second Bull Run Campaign, August 17–30, 1862 (Additional map).
]]

{{further|Northern Virginia Campaign#Initial movements}}

On August 3, General-in-Chief [[Henry Halleck]] directed McClellan to begin his final withdrawal from the Peninsula and to return to Northern Virginia to support Pope. McClellan protested and did not begin his redeployment until August 14.<ref>Hennessy, p. 10; Esposito, Map 56.</ref>

On August 9, Nathaniel Banks's corps attacked Jackson at [[Battle of Cedar Mountain|Cedar Mountain]], gaining an early advantage, but a Confederate counterattack led by A.P. Hill drove Banks back across Cedar Creek. Jackson's advance was stopped, however, by the Union division of Brig. Gen. [[James B. Ricketts]]. By now Jackson had learned that Pope's corps were all together, foiling his plan of defeating each in separate actions. He remained in position until August 12, then withdrew to Gordonsville.<ref>[http://www.nps.gov/history/hps/abpp/battles/va022.htm NPS Cedar Mountain summary].</ref> On August 13, Lee sent Longstreet to reinforce Jackson.