I- Rising Sun in the East

The Rubicon, a river whose name eludes most of the men standing in formation, is not one with much significance to the locals, nor is it one that is crucial to the surrounding terrain. But, this river is one that divides land where Julius Caesar can lead an army from the lands of Italia, where setting one foot across the river in command of an army would be an act of outright rebellion, casting the political and social order of Rome into chaos. Behind Caesar was his most faithful legion, the Thirteenth "Gemina", who served with distinction across Caesar's Gallic wars; which is why Caesar chose them when he was passed an ultimatum that the Senate knew he couldn't fulfill.