Among the Blue People, there isn't a formal army; every nomadic family hides leather armor and weapons. When needed, they can don armor at any time, become soldiers, and join the battle. And when the battle is over, they take off their armor and return to being ordinary nomads. This unique military system allows the Blue People to quickly disperse and avoid the enemy's pursuit when facing the Black Dragon Kingdom's army raids.
Every year around autumn and winter, when the grass withers, some young nomads gather together to form temporary armies. They put on armor, take up weapons, and cross the border to raid the frontier regions of the Black Dragon Kingdom. Their actions are swift and cunning, sometimes brazenly attacking villages, sometimes secretly ambushing caravans. And when the Black Dragon Kingdom's troops hear the news and rush to encircle them, they cleverly evade capture using the terrain and their familiarity with the environment.
