The air war during the Spanish Civil War (1936–1939) served as a transformative "dress rehearsal" for the global conflict that followed. It saw the rapid evolution of airpower from a small, largely obsolete force into a sophisticated fighting arm characterized by the first large-scale airlifts, the development of modern fighter tactics, and the testing of advanced aircraft that would later dominate World War II. The Wings of Conflict: Major Aircraft
The war was a unique testing ground where aging biplanes fought alongside revolutionary monoplane designs. Air War Over Spain: Aviators, Aircraft and Air ...