Flechas Azules 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. One, the Flechas Azules Mixed Brigade "Blue Arrows" first served in Extremadura from April 1937 to the end of the War in the North.Flechas Azules Brigade - Col. Mario Guassardo
- 1st Regimient
- * 1st Battalion
- * 2nd Battalion
- * 3rd Battalion
- 2nd Regimient
- * 1st Battalion
- * 2nd Battalion
- * 3rd Battalion
- Assault Battalion
- * 1st Company
- * 2nd Company
- Artillery Group
- * X Group 75/27
- * Battery 20mm AA
Flechas Azules Brigade - Col. Mario Guassardo
- 3rd Regimient
- * 1st Battalion
- * 2nd Battalion
- * 3rd Battalion
- * Battery 65/17
- 4th Regimient
- * 1st Battalion
- * 2nd Battalion
- * 3rd Battalion
- * Battery 65/17
- Assault Battalion "As"
- Artillery Group
- * Xº Group de 75/27
- * Bía de 20mm
- * Bía de 37mm
- Engineer Company
- Military Police Section
- Intendencia Section
- Sanitation Section
- Division Truck Unit
The Flechas Azules Brigade was later used to form the Flechas Verdes Division and Flechas Azules Division in late 1938.