text: Division Services The 28th Infantry Division "Aosta" was one of three divisions, which recruited in Sicily. It mainly drafted men from western Sicily and had its peacetime headquarters in Palermo. It's two infantry regiments were based in Trapani (5th) and Palermo (6th), where also the division's artillery regiment was based.
  28th Infantry Division "Aosta" - Generale di Divisione Giuseppe Romano
  5th Infantry Regiment "Aosta"
  3x Fusilier battalions
  Support Weapons Company (65/17 infantry support guns)
  Mortar Company (81mm Mod. 35 mortars)
  6th Infantry Regiment "Aosta"
  3x Fusilier battalions
  Support Weapons Company (65/17 infantry support guns)
  Mortar Company (81mm Mod. 35 mortars)
  171st CC.NN. Legion "Vespri" (detached as Tactical Group "Alcamo-Partinico")
  CLXVIII CC.NN. Battalion
  CLXXI CC.NN. Battalion
  171st CC.NN. Machine Gun Company
  22nd Artillery Regiment "Aosta"
  I Artillery Group (75/27 field guns; detached to Tactical Group "Alcamo-Partinico")
  II Artillery Group (75/27 howitzers)
  III Motorized Group (75/18 Mod. 35 field guns)
  IV Artillery Group (75/13 mountain guns)
  328th Anti-aircraft Battery (20/65 anti-aircraft guns; 2nd Section detached to Mobile Group "A")
  365th Anti-aircraft Battery (20/65 anti-aircraft guns)
  XXVIII Mortar Battalion (81mm Mod. 35 mortars)
  CXXVIII Mixed Engineer Battalion
  28th Anti-tank Company (47/32 anti-tank guns)
  Division Services
  Italian XVI Army Corps
  XVI Army Corps, in Piazza Armerina - Generale di Corpo d'Armata Carlo Rossi - responsible for Sicily to the East of a line from Cefalù to Gela
  40th Army Corps Artillery Grouping, in Piazza Armerina
  X Motorized Artillery Group (105/28 howitzers)
  XVI Motorized Artillery Group (105/28 howitzers)