<prompt> Nyora kupfuurira kweiyi ndima - Wissahickon yakavakwa paPhiladelphia, Pennsylvania. Yakatumirwa munaNovember 1861, yakatanga kushanda muGulf of Mexico uye paRwizi rweMississippi, uko muna Kubvumbi-Chikunguru 1862 yakabatanidzwa mukubatwa kweNew Orleans, kuputirwa kweGreat Gulf  <response>: , makundano maviri akapfuura masvingo eConfederate aidzora rwizi paVicksburg uye hondo ne ironclad. 