During World War I, a third of male population of the UK went to fight. And over 700,000 of them never returned home. As a result, women had to step up to the plate and be counted - a task that women fulfilled. World War II killed almost 900,000 men, and because that conflict was so much more complex the roles that women played were infinitely more involved. Women became spies, data analysts, armaments manufacturers, farmers, code crackers and did - as with the men - anything that was asked of them to bring down the Nazis.