<prompt> Qedela umusho olandelayo: Ibutho laqoqelwa inkonzo yaseFederal ngoJulayi 12, 1861, futhi lasuka laya esihlalweni sempi, lafika ngasePotomac ngo-August 25. Ngo-Okthoba 21, yabhekana nokulahlekelwa okukhulu kakhulu phakathi kwazo zonke izigaba zeFederal eMpini yaseBalls Bluff. Ngentwasahlobo ka-1862, yenziwa ingxenye ye-II Corps ye-Army of the Potomac futhi yahambisana nayo ngesikhathi se-Peninsular Campaign, isebenza eMpini Yase-Seven Pines,  <response>: Isiteshi sikaSavage, neGlendale ngokulahlekelwa okuncane. Ngo-Ephreli ka-1862, i-1st Company Massachusetts Sharpshooters yanamathiselwa kuleli qembu, yasebenza nalo kwaze kwaba entwasahlobo ka-1863. Njengoba yayichithe ingxenye enkulu yehlobo eHarrisons Landing, yahamba ngo-August ngesikhathi esifanele ukuze iphuthelwe iMpi Yesibili YaseBull Run. I-regiment yabe isiqala uMkhankaso waseMaryland, lapho yayihlaselwa khona yi-Confederates e-Battle of Antietam, yalahlekelwa ngaphezu kuka-50 wamadoda ayo angama-600. Ngesikhathi seMpi yaseFredericksburg, yayigcinwe ngaphandle kokuhlaselwa okuyinhloko kweMaryes Heights futhi yalahlekelwa kancane. Impi yaseGettysburg ithole i-regiment ibhekene nokuhlaselwa kwe-Army of Northern Virginia ngoJulayi 2 no-3, 1863, ngokulahlekelwa okukhulu. Ngo-1864, amandla aleli gciwane ayesephelile, kodwa namanje abhekana nemikhankaso eqinile nezenzo ku- The Battle of the Wilderness, Spotsylvania, Cold Harbor, kanye nokuvinjezelwa kwePetersburg. NgoJuni 22, ibutho lase likwazi ukuletha izikhulu namadoda angama-75 kuphela. Leli qembu elincane lathunjwa ngobuningi ngalolo suku lapho livinjezelwa ibutho le-Confederate eJerusalem Plank Road. Abasindile kanye nabashayiwe baphuma eFederal service ngoJulayi 26, 1864, nabaqashiwe kanye nabaphinde babhaliswa badluliselwa ku-20th Massachusetts Volunteer Infantry. 