The Conquest of Belgae refers to Julius Caesar's military campaign against the Belgae, a group of tribes in northern Gaul, during the Gallic Wars. This campaign, described in Book IV of Caesar's Commentarii de Bello Gallico, highlights Caesar's strategic prowess and the challenges faced in subduing the diverse and resilient tribes of this region. The campaign not only solidified Roman control over Gaul but also showcased the complexities of tribal alliances and warfare during this period.