How did the second great affect women

Do you mean the second great War? As in World War II? If this is the case, the main way the war affected women is that all able bodied men were required to fight in the war, therefore a vast majority of women went off to work the jobs that men used to work such as manufacturing and other physical labor requiring jobs. The icon for this act was Rosie the Riveter. She was a made of symbol for women going off to work. You may have seen it, the woman wearing  the bandanna and pulling up her sleeve saying "We Can Do It!" When the war was over and the men returned, they took over the jobs despite the women having worked there for years. This put many women out of work after the war, and for those who's husbands dies in the war, they could no longer support themselves or their families. This helped spark the women's rights movement that happened alongside the Civil rights movement. I hoped this helped.