Two Roads to 1940 is a comparative study of the French and British air arms, from 1918 to 10 May 1940. Higham seeks the answer to the question “Why was the Armée de l’Air defeated in June 1940 whereas the Royal Air Force won the Battle Over Britain in September?”To reach a conclusion, the structure, the men and matériel, the government, and the economic infrastructure were analyzed. The story reveals that the French, dominated by the Armée...