Passing under the Yoke (Sub iugum)

A victorious Roman army, having conquered their barbarian enemy, are subjecting their captives to the humiliating ritual of sub iugum or passing under the Roman yoke.

Stripped naked and with their wrists tied behind their backs, the captives are made to pass between two rows of jeering Roman soldiers armed with whips until they come to the wooden yoke of the type used on plough oxen or other beasts-of burden. Here, they are made to bend their backs and pass under the yoke  as a sign of their subjugation to the Roman Republic.

Their next destination? The slave-market in Rome.