<prompt> Bhala okuqhubekayo kwalesi sigaba - iWissahickon yakhiwa ePhiladelphia, ePennsylvania. Ethunywe ngoNovemba 1861, ekuqaleni wakhonza eGulf of Mexico naseMfuleni iMississippi, lapho ngo-Ephreli-Julayi 1862 wabamba iqhaza ekubanjweni kweNew Orleans, ukuhlaselwa kweGrand Gulf  <response>: , ukugijimela kabili ngaphesheya kwezingange ze-Confederate ezilawula umfula eVicksburg kanye nokulwa ne-ironclad. 