The XXIII de Marzo Group was one of the Blackshirt

Blackshirts

The Blackshirts were Fascist paramilitary groups in Italy during the period immediately following World War I and until the end of World War II...

 units sent to Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 during the Spanish Civil War

Spanish Civil War

The Spanish Civil WarAlso known as The Crusade among Nationalists, the Fourth Carlist War among Carlists, and The Rebellion or Uprising among Republicans. was a major conflict fought in Spain from 17 July 1936 to 1 April 1939...

 to make up the "Corpo Truppe Volontarie

Corpo Truppe Volontarie

The Corps of Volunteer Troops was an Italian expeditionary force which was sent to Spain to support General Francisco Franco and the Spanish Nationalist forces during the Spanish Civil War...

" (Corps of Volunteer Troops), or CTV. This unit was attached to the 2nd CCNN Division "Fiamme Nere" during the Battle of Guadalajara

Battle of Guadalajara

The Battle of Guadalajara saw the Republican People's Army defeat Italian and Nationalist forces attempting to encircle Madrid during the Spanish Civil War...

 in March 1937. Following that defeat it was sent to
Vizcaya in April 1937 with the Flechas Negras Mixed Brigade

Flechas Negras Mixed Brigade

In 1937, during the Spanish Civil War, Italians from the Corpo Truppe Volontarie began to serve in mixed Italo-Spanish Flechas units where the Italians provided the officers and technical personnel, while the Spanish served in the rank-and-file...

 and 11 Groups of CTV Corps Artillery.

Battle of Guadalajara March 1937

Independent Group "XXIII March" - Console Enrico Francisci

• 4th Grupo de Banderas - Console Francesco Gidoni
  • Bandera "Toro" - 1st Seniore Mario Bertoni
  • Bandera "Bisonte" - 1st Seniore Fiorentini
  • Bandera "Bufalo" - 1st Seniore Piero Bologna
  • Battery (65/17)
  • Engineer Section
• 5th Grupo de Banderas - Console Enrico Francisci
  • 540 Bandera "Lupi" - Seniore Nello Brogi
  • 530 Bandera "Implacabile" - Seniore Di Puccio
  • Bandera "Ardente" - 1st Seniore Spangaro
  • Battery (65/17)
  • Engineer Section

Vizcaya April 1937

Agrupación XXIII de Marzo - Console Enrico Francisci

• 11th Battery (65/17)
• IV Grupo de banderas
  • Bandera "Bufalo"
  • Bandera "Bisonte"
  • Bandera "Toro"
  • 508 Battery (65/17)
  • Mortar Platoon
• V Grupo de banderas
  • 530 Bandera "Implacabile"
  • Bandera "Ardente"
  • 540 Bandera "Lupi"
  • 608 Battery (65/17)
  • Mortar Platoon
• Carabinieri Platoon
• Bandera de complemento

The Blackshirt (Camicie Nere, or CCNN) Divisions contained regular soldiers and volunteer militia from the Fascist Party.