List of tanks in the Spanish Civil War

The Spanish Civil War, fought between 1936 and 1939, provided an opportunity for many European countries to evaluate new technologies and tactics, including armored warfare. At the beginning of the war, the Nationalist and Popular Fronts each possessed only five World War I-era-design Renault FT light tanks, although these were soon reinforced with imported materiel.

Source: Wikipedia — List of tanks in the Spanish Civil War (CC BY-SA 4.0)