In the last years of the war, Great Britain, the US, and the USSR began a race to Berlin. This poster is an example of British propaganda justifying their alliance with the USSR and showing their people that together the Allies will win the war.
This poster shows not only that men recognize that women can work but also that the US population teamed up and worked together to win the war. The war was a "good war" because the American people did their part together.