Recent archaeological discoveries near Savognin, Switzerland, point to a significant Roman battle circa 15 BC, a key moment in the expansion of the Roman Empire under Emperor Augustus. Artifacts such as lead projectiles and remnants of military formations affirm that Roman forces, possibly led by Lucius Calpurnius Piso Pontifex, engaged the local Suaneten tribes in a contest of strategy and technology. Notably, the research reveals the tactical importance of sling bullets, capable of deadly velocities, and sets the stage for understanding Rome’s prolonged occupation of present-day Switzerland. Ongoing studies aim to uncover even more relics and insights from this pivotal clash.