Dhameystir weedha soo socota: Major General Ulysses S. Grant oo ka tirsan Ciidanka Midowga wuxuu 24,000 oo nin ka soo dejiyey Bruinsburg, Mississippi, Abriil 30, 1863, qayb ka mid ah ololihii Vicksburg, hawlgal loogu talagalay in lagu qabsado magaalada muhiimka ah ee Wabiga Mississippi ee Vicksburg, Mississippi. 1-dii Maajo, raggiisii waxay u dhaqaaqeen dhanka bari ee webiga, raggii Grant waxay ku adkaadeen Confederates-ka
Dagaalkii Port Gibson. Kadib Port Gibson, Grant wuxuu dooran karaa inuu weeraro Vicksburg dhanka koonfureed, ama inuu sii maro dhanka bari ka dibna uu u leexdo dhanka galbeed ee magaalada. Waxa uu go'aansaday in uu doorto jidka labaad, maadaama uu siinayo fursado badan oo uu ku qabsan karo ciidanka Confederate ee difaacaya Vicksburg, marka lagu daro magaalada lafteeda.