I wasn't aware of females having a history of success in air combat that justified the inclusion of them as a sex.
Although not mentioned in the article, the Soviets had a crack unit of female pilots on WWII, iirc.
Ask the Russians. They had 3 fighter regiments with all women pilots. The 556th fighter regiment flew 4400 sorties against the Germans. Two of their pilots are the only women aces. Also had bomber regiments with women pilots. The 46th Taman Guards Bomber Regt. flew 24,000 missions.