<prompt> Qedela umusho olandelayo: Ngemva kokuhlelwa, ibutho elisha labelwa i-First Missouri Brigade. I-First Missouri Brigade, eyayiholwa uColonel Francis M. Cockrell, yadluliselwa endaweni eseduze neGrand Gulf, eMississippi ekuqaleni kukaMashi 1863. Ngesikhathi eseGrand Gulf, leli butho lakha izinqaba. I-1st ne-4th Missouri Consolidated, kanye ne-2nd Missouri Infantry, 3rd Missouri Infantry, kanye ne-battery kaHenry Guibor, bawela uMfula iMississippi baya eLouisiana ukuyobuka ukunyakaza kwe-Union. Ngo-Ephreli 15, amaMissourians ayalelwa ukuba abuyele eGrand Gulf, futhi i-regiment yahlanganyela emlilweni wezibhamu nemikhumbi yempi yase-Union e-  <response>: Impi YaseGrand Gulf. Ngemuva kokuthi uMajor General Ulysses S. Grant ehlele eMississippi ukuze ahlasele iVicksburg, uBowen wathumela amadoda akhe amaningi evela eGrand Gulf eya ePort Gibson, eMississippi ukuzama ukumisa uGrant. Kodwa-ke, i-1st ne-4th Missouri Consolidated yayisebenza ngokuzimela ivikela ibhuloho, futhi yaphuthelwa iMpi yasePort Gibson elandelayo ngoMeyi 1. 