AK Interactive Book Aircraft Of SpanishCivil WarAIRCRAFT OF THE SPANISH CIVIL WAR 1936 1939 English Spanish 232 pages. Hard Cover. The Spanish Civil War was one of the most important conflicts of the 20th century due to the number of air operations and aircraft of different origins that took part in it. It is historically accepted that it was the dress rehearsal for World War II and prompted some future adversaries to try out their new weapons and tactics, and allowed their military personnel to