A war of aggression by the Wasp Empire against the Commonweal. It pitted the professional army of the wasps, backed with artifice, against the inapt feudal levy, led by dragonfly mercers and princes. Over the course of twelve years, the wasps won battle after bloody battle, gradually grinding their way into the westernmost principalities of the commonweal. The war was not without cost to the Wasp, however. As the Commonweal lost armies, the Empire lost officers; assassinated in the centre of well-defended camps or singled out and cut down by Mantis or dragonfly warriors in the heat of battle. Eventually, after the Sixth army was butchered and the battle of Shon Real ground to a standstill, by Prince Lowre Darien, a treaty was signed between the combatants. The Treaty of Pearl effectively surrendered a large swathe of the Commonweal to the Empire, but the Monarch's only other option was to spend more of the blood of Commonweal peasants.