Spanish Republican Air Force

The Spanish Republican Air Force was the air arm of the Armed Forces of the Second Spanish Republic, the legally established government of Spain between 1931 and 1939. Initially divided into two branches: Military Aeronautics (Aeronáutica Militar) and Naval Aeronautics (Aeronáutica Naval), the Republican Air Force became the Air Forces of the Spanish Republic (Fuerzas Aéreas de la República Española (FARE)), also known as Arma de Aviación, after it was reorganized following the restructuring of the Republican Armed Forces in September 1936, at the beginning of the Spanish Civil War.

Source: Wikipedia — Spanish Republican Air Force (CC BY-SA 4.0)