The Gallic Wars were a series of wars fought between the Romans and the people of Gaul during the first century BC which ended with the expansion of the Roman Republic across Gaul. Julius Caesar famously described his military campaign in the Gallic Wars in his writings known as De Bello Gallico.
The Gallic Wars include the Helvetian War.
The Gallic Wars have become a popular setting in modern historical fiction, especially that of France and Italy. The comic Astérix, for example, is set during the Gallic Wars.