Many women acted as nurses for the wounded in WWI front lines. Most were not allowed to combat, but they could fill roles in other occupations such as the U.S. Army's Signal Corps. and as marine and naval yeomen.
The women in the First World War were mobilized in an unprecedented number throughout the world. The vast majority of these women were recruited to work in munitions factories, greatly expanding civilian work to replace the recruited men. Thousands served in the armed forces in support roles, for example, as nurses but in Russia some were in combat.
St. Paul refers to the people of the world as the "sons of Bondage". The Saints are children of God by adoption. He calls the Galatians back to Christ, so they can be saved.
