Answer: Most men were away fighting in the war.
Explanation: The massive employment of women during the First World War was one of the reasons for the successful American participation in the war. America has significantly contributed to the victory of the Allies, and it is important to note that, among other things, the transformation of American production from the peace-keeping to the war regime has been made. American production is adapted to the needs of the war and the production of weapons, and given that most of the men were on the front, women are employed, such as for the production of ammunition.