<prompt> Qedela umusho olandelayo: U-Edward Dorr Tracy, Jr. wayeyi-brigadier general ye-Confederate States Army phakathi neMpi Yombango YaseMelika. Ngemva kokukhonza eVirginia naseMpumalanga Tennessee, wabulawa e-  <response>: Impi yasePort Gibson eyayiyingxenye yeVicksburg Campaign. 