Nyorai kupfuurira kweiyi ndima - "Ivy" yaivewo iripo pakufamba kweVicksburg, Mississippi, mabhatiri naAdmiral David Dixon Porter's ngarava 16<unk>17 April 1863. Yakasungirirwa kurutivi rwavane simba, "Ivy" yakayambuka noushingi ichipfuura neVicksburg, ichivhura mashandiro kumaodzanyemba kweguta kuPorter uye ichibetsera zvikuru kuwa kweGrand Gulf
uye pakupedzisira kukundwa kweVicksburg.