<prompt> Bhala okuqhubekayo kwalesi sigaba - U-Edward Dorr Tracy, Jr. wayeyi-brigadier general ye-Confederate States Army phakathi neMpi Yombango YaseMelika. Ngemva kokukhonza eVirginia naseMpumalanga Tennessee, wabulawa eMpini yasePort Gibson  <response>: okwakuyingxenye yeMpi YaseVicksburg. 