There was a great war almost 75 years ago that engulfed the world, killing many of the men in the conflict. Faced with a shortage of soldiers, countries added women to their drafts and had them fight alongside the men. After many long years of fighting, the nations left alive signed a peace treaty and went on to rebuild. However, these academies that trained the boys and girls remained open, and now they host friendly competitions between schools to celebrate this new tradition of warfare.