Military historians divide the campaign into two formal phases: Operations Against Vicksburg (December 1862 – January 1863) and Grant's Operations Against Vicksburg (March–July 1863).
Militærhistorikere deler felttoget op i to faser: Operationer mod Vicksburg (december 1862 – januar 1863) og Grants operationer mod Vicksburg (marts – juli 1863).