As the Axis Powers gained momentum during WWII, the U.S. needed to stop their advancement. Since men were needed on the front lines, women were being discreetly recruited to join the war effort to crack codes used as vital communication in the war. Due to the astonishing strides made by these women, the way the military worked was dramatically changed! Their code-breaking communications also led to the creation of the precursors to the N.S.A. and C.I.A.
Nazis. History Extra.unknown.