Pedzisa mutsara unotevera: Musi waAugust 28<unk>30, 1862, Confederate Army of Northern Virginia yaitungamirirwa naGeneral Robert E. Lee yakakunda Union Major General John Pope's Army of Virginia muHondo yechipiri yeBull Run kana yechipiri Manassas. Pope akadzokera kuCentreville, Virginia uko kwaakafunga kuti simba rake ridzokere mukudzivirira kweWashington, D.C. Sezvo varume vaPope vakadzokera shure uye vakarongekazve mukuita sekunge zvakanaka, Major General Henry W. Halleck, ipapo Union Army General-in-Chief, akaraira Pope kuti arwise Lee. Lee akanga asina kurayira kuti uto raPope ritevedzwe nokukurumidza nokuti maConfederate akanga aneta pashure pemavhiki matatu okufora uye hondo uye akanga asisina zvombo uye zvokushandisa. Zuva rakatevera racho, Lee akarayira Major General Thomas J. "Stonewall" Jackson kuti apfuure mauto eUnion uye kuti aise simba rake pakati pevarume vaPope neWashington, D.C. Izvi zvakatungamirira ku
Hondo yeChantilly kana Ox Hill muFairfax County, Virginia musi waSeptember 1. Mapoka maviri eUnion Army akabata simba reConfederate sezvo dutu remheni rakakomba rakakanganisa kurwa kwakapfuurira. Mushure mokunge kurwa kwapera, mauto eUnion akadzokera kuJermantown, Virginia neFairfax Court House, Virginia ndokuzoenda kuWashington, D.C. kudzivirira. Ikoku kwakazarura nzira yeMushandirapamwe weMaryland, kupinda kwokutanga kwaLee muNorth.