 by ambrose powell hill just to the west of gettysburg and one commanded by peter longstreet south and west of gettysburg to consolidate at gettysburg in order to avoid being defeated in detail gettysburg being where all the roads went primarily like a like a the hub of a wheel and the spokes going out in all directions and so they begin to assemble on the 30th of june john buford is a union cavalry commander he is the cavalry commander for the first