Nationalists

• 4th Division "Littorio" (Lictor
  Lictor
  The lictor was a member of a special class of Roman civil servant, with special tasks of attending and guarding magistrates of the Roman Republic and Empire who held imperium, the right and power to command; essentially, a bodyguard...
  
  )- General de Brigada Annibale Bergonzoli
  Annibale Bergonzoli
  Annibale Bergonzoli , nicknamed "barba elettrica", "Electric Whiskers", was an Italian Lieutenant General during the Spanish Civil War and World War II. He commanded the defences of Bardia, Libya, after the short offensive into Egypt made by Rodolfo Graziani...
  
  
• 1st CCNN Division "Dio lo Vuole" ("God wants it")- General de Brigada Edmondo Rossi
• 2nd CCNN Division "Fiamme Nere" ("Black Flames") - General de Brigada Guido Amerigo Coppi
  • XXIII de Marzo Group
    XXIII de Marzo Group
    The XXIII de Marzo Group was one of the Blackshirt units sent to Spain during the Spanish Civil War to make up the "Corpo Truppe Volontarie" , or CTV. This unit was attached to the 2nd CCNN Division "Fiamme Nere" during the Battle of Guadalajara in March 1937...
    
    
  • Attached artillery - Teniente Coronel Bottari
    • X Group 75/27 (3 batteries of 4 guns)
    • I Group 100/17 (2 batteries of 4 guns)
    • II Group 100/17 (2 batteries of 4 guns)
    • II Group 105/28 (2 batteries of 3 guns)
    • IV Group 149/12 (2 batteries of 3 guns)
    • Platoon of Combat Engineers
    • Artillery Park Section
• 3rd CCNN Division "Penne Nere" ("Black Feathers") - General de Brigada Luigi Nuvoloni
• Tank and Armoured Cars Group
  Tank and Armoured Cars Group
  The Tank and Armoured Cars Group was the first armoured formation of the Corps of Volunteer Troops involved in the Spanish Civil War. Between 3 February and 8 February 1937, Italian armour played a successful part during the Battle of Málaga...
  
  
• Corps Artillery - General de Brigada Ugo Zanotti
  • VIII Group 75/27 (3 batteries of 4 guns)
  • VII Group 75/27 (3 batteries of 4 guns)
  • III Group 100/17 (2 batteries of 4 guns)
  • IV Group 100/17 (2 batteries of 4 guns)
  • V Group 100/17 (2 batteries of 4 guns)
  • VI Group 100/17 (2 batteries of 4 guns)
  • II Group 105/28 (2 batteries of 3 guns)
  • IV Group 105/28 (2 batteries of 3 guns)
  • I Group 149/12 (2 batteries of 3 guns)
  • III Grupo de 149/12 (2 batteries of 3 guns)
  • 75mm Battery C.K.
  • AA Battery 20mm
  • Engineer Section
  • Artillery Park Section
• Engineer Group - General de Brigada Michele Molinari
  • 1 Mixed Company (vehicle repair)
  • 1 Radio and Signal Company
  • Independent Radio and Signal unit
  • Interception unit
• Heavy Truck Unit
• Services - Coronel Francesco Rippa.
• Aviación legionaria - General Vincenzo Velardi
• División Soria - General Moscardó
  • I Brigade - Colonel Esteban Infantes (4,800 men employed in the Somosierra)
  • II Brigade - Colonel Marzo
    • 1st Agrupación - Lieutenant Colonel Sotelo
      • Battalion de América
      • Battalion Bailén
      • Battalion Toledo
      • Battalion La Victoria
      • 1 Compañía de carros
      • 1 Artillery Group 75mm
      • 2 Sections of Antitank Guns and antiaircraft 20mm,
      • 1 Combat Engineer and Services Company
    • 2nd Agrupación - Comandante Ibáñez de Aldecoa
      • Battalion Gerona
      • Tercio de Requetés de Burgos
      • 11th Bandera de Falange
      • 1 Artillery section 75mm
      • 1 Artillery Group 77mm
      • 1 Combat Engineer and Services Company
    • 3rd Agrupación - Lieutenant Colonel Villalba
      • Battalion Aragón
      • Battalion San Quintín
      • 1 Bandera de F. E. de Burgos-Alava
      • 1 Artillery battery 75mm
      • 1 Artillery battery 105mm
      • 1 Combat Engineer and Services Company
    • Agrupación de Caballería - Comandante Pita Da Veiga
      • 4 escuadrones de sables y una sección de armas automáticas.
    • Reserva del Mando
      • 1 Artillery battery 155mm
      • 1 Pontoonier Unit
  • III Brigade - Colonel Los Arcos (sent to be a reserve, not involved in the battle)

Republic

• 11th Division - Enrique Líster
  Enrique Líster
  Enrique Líster Forján was a Spanish communist politician and military officer.-Early life:...
  
  
• 12th Division - Lacalle (replaced by Nino Nanetti after three days)
• 14th Division - Cipriano Mera
• 42nd Mixed Brigade - ? (Flank guard)
• 1st Mobile Brigade - Valentin Gonzalez
  Valentín González
  Valentín González González was a Republican military commander during the Spanish Civil War. Known as El Campesino , González was one of many competent officers to have served in the Ejército Popular of the Second Spanish Republic.Born in Malcocinado, Badajoz, Spain, Gonzalez worked as a miner...
  
  "El Campesino"
  • 1st Battalion
  • 2nd Battalion
  • 3rd Battalion
  • 4th Battalion
• 33rd Mixed Brigade - Comandante Mulet
  • Batallón Teruel
  • Batallón 1st de Mayo
  • Batallón Madrid
  • Batallón 11th Regimient
  • Batallón 9th Regimient
• 1st Cavalry Brigade - Comandante Aguado
  • 1st Regimient -
    • 1st Squadron Group - Captain Jose Gonzalez Caparras
    • 2nd Squadron Group - Captain Isidoro Infantes Rico
  • 2nd Regimient "Jesus Hernandez" - Comandante Cruz
    • Cavalry Squadron of the XII Mixed Brigade
• 6 Fortification Battalions

Source

• de Mesa, José Luis, El regreso de las legiones: (la ayuda militar italiana à la España nacional, 1936–1939), García Hispán, Granada:España, 1994 ISBN 84-87690-33-5