The Roman general known for his military campaigns in Gaul was Julius Caesar. From 58 to 50 BCE, Caesar led a series of military campaigns that expanded Roman territory and influence across what is now France and parts of Belgium, Switzerland, and Germany. His account of these campaigns, "Commentarii de Bello Gallico," provides valuable insights into the military tactics and strategies of the time, as well as the cultures of the Gallic tribes. Caesar’s success in Gaul significantly enhanced his power and fame, setting the stage for his eventual rise to become dictator of Rome.