Battle of Alesia
Caesar engaged in the Gallic Wars (58–50 BC), which led to his conquest of Gaul beyond Gallia Narbonensis. When the Helvetii, a federation of tribes from what is now Switzerland, planned a migration to the Atlantic coast through Gaul, Caesar went to Geneva and forbade the Helvetii to move into Gaul. While he went to Gallia Cisalpina to collect three other legions, the Helvetii attacked the territories of the Aedui, Ambarri, and Allobroges, three Gallic tribes, which called for Caesar’s help. Caesar and his Gallic allies defeated the Helvetii. The Gallic tribes then asked for Caesar to intervene against an invasion by the Suebi, a Germanic tribe. Caesar defeated the Suebi. In 57 BC he intervened in intra-Gallic conflicts and marched on the Belgae of northern Gaul. From then on he conquered the Gallic peoples one by one. His successes in Gaul brought Caesar political prestige in Rome and great wealth through the spoils of wars and the sale of war captives as slaves.
Julius Caesar
Many rulers in history became interested in the historiography of Caesar. Napoleon III wrote the scholarly work "Histoire de Jules César", which was not finished. The second volume listed previous rulers interested in the topic. Charles VIII ordered a monk to prepare a translation of the "Gallic Wars" in 1480. Charles V ordered a topographic study in France, to place The Gallic Wars in context; which created forty high-quality maps of the conflict. The contemporary Ottoman sultan Suleiman the Magnificent catalogued the surviving editions of the "Commentaries", and translated them to Turkish language. Henry IV and Louis XIII of France translated the first two commentaries and the last two respectively; Louis XIV retranslated the first one afterwards.