<prompt> Pedzisa mutsara unotevera: Pana January 27, 1863, bhatiri rakaendeswa kuGrand Gulf, Mississippi, richibatanidza kudzivirira paRwizi Rukuru Rutsvuku. Pavakanga vari paGrand Gulf, bhatiri racho rakabatanidzwa mukurwisana kuduku kwakasiyana-siyana nezvikepe zveUnion, kunyange zvazvo vamwe vevarwi vakashuma kufinhwa. Pakati paMarch, bhatiri racho rakarinda nzvimbo inozivikanwa seWinklers Bluff paRwizi Huru Rutsvuku, nemirairo yokurega zvikepe zvichipfuura nepapo. Musi waApril 29, ngarava dzeUnion Navy dzakanga dzichitungamirirwa naAdmiral David Dixon Porter dzakarwisa nzvimbo yeConfederate paGrand Gulf, zvichiita kuti  <response>: Hondo yeGrand Gulf, kunyange zvazvo Bhatiri raLandis rakanga risiri rutivi rwemutsetse wapamberi weConfederate. Imwe nhare yakamira, naizvozvo Grant akaendesa varume 24 000 nechokuzasi kwerwizi kuBruinsburg. Varume ava vakakurumidza kutamira kumabvazuva kubva murwizi, vachitungamira Brigadier General John S. Bowen, mutungamiri weConfederate kuGrand Gulf, kutumira simba rekudzivirira kuPort Gibson mukuedza kumisa kupinda kwaGrant. Mangwanani aMay 1, howitzers mbiri dzeBattery yaLandis nevashandi vavo vakatumirwa kuti vabatane nechisimba chinodzivirira. Munguva yeHondo yePort Gibson, bhatiri rakapfura varume veMajor General John McClernands Union corps uye vakapinda muhondo yezvombo ne8th Michigan Light Artillery; iyo unit yakarasikirwa nevatatu panguva yekurwisana uye haina kubviswa kusvikira masikati. Pane imwe nguva muhondo, bhatiri racho rakaiswawo pasi pemoto weUnion sharpshooter, vasati vaparadzira varwi vavo necanister. Pasinei nokuva pakutanga, kumanikidzwa kweUnion pakupedzisira kwakasundira kurudyi kwaBowen, zvichiita kuti maConfederate adzokere Grant asati avafambira. Mushure mePort Gibson, maConfederates akamanikidzwa kusiya nzvimbo yavo paGrand Gulf musi waMay 3; Landiss Battery zvakare yakashanda sechikamu chevarindi vekumashure. 