Possible member of Vandali Justiniani

Possible member of Vandali Justiniani based on mosaic from Madaba.

When the epic story of the(independent)Vandals came to an end 100 years after the establishment of their North African kingdom centered in Carthage("The Kingdom of the Vandals and Alans Vandaliric")the Emperor Justinian got rid of some of the potentially problematic remaining Vandal men by forming them into a new imperial regiment which he named after himself VANDALI IUSTINIANI/"Justinian's Vandals"(all of whom Belisarius originally brought with him to Constantinople to participate in the ceremony of Roman Triumph as captives), he divided them into five battalions ("Bandons", at this time each Bandon had between 200-400 men) of cavalry and, in a tried and tested method,promptly sent them them far from home to the east to face the Persians.

That this was not an entirely voluntary recruitment is evident from the fact that during the voyage some of these Vandals, numbering around 400, mutinied and seized control of the ships that were to carry them east. This group eventually successfully made their way back to the territory of their now defunct kingdom (in the meantime reorganized as the "Praetorian Prefecture of Africa") where their arrival further encouraged the nascent rebellion in the local Roman army (which eventually started on Easter 536),primarily provoked by land ownership disputes and the insensitive crackdown by Emperor Justinian on the Arian Christians who made up a significant percentage of the soldiers in that province because they were often by origin from Germanic tribes practicing Arianism just like the Vandals. Later, these deserters were again among defeated when the rebel army was literally swept away by the briefly returning Belisarius in the Battle of Membresa.
Arianism was tolerated to a large extent in the Roman army for practical reasons, but this was interspersed with attempts at forced conversion.Tiberius II even allowed an Arian church to be built in Constantinople (he desperatly needed more soldiers for the war with Persia), but this earned him serious street riots, death threats and accusations of being secretly Arian or even pagan himself.

However, the remaining 4 Bandons of Justinian's Vanndals arrived in the east as planned and there they have loyally served as a regular unit of the Imperial Army ever since(even under Belisarius,their conqueror, himself).