Gaul became a province of the Roman Empire after their conquest in the Gallic Wars of the 50s BC. After this, the Gauls were culturally assimilated into a Gallo-Roman culture until they eventually lost their tribal identities by the end of 1 AD. The humorous Asterix stories are set about 50 BC, when the Romans occupied the Gauls territory (modern day France) and some people still resisted the Roman occupation repeatedly. In this adventure, Asterix and his faithful bumbling sidekick Obelix obtain a chieftain's shield.