Vandalic War

The Battle of Ad Decimum, fought on 13 September 533, was an early engagement of the Vandalic War between the Byzantine forces under Belisarius and the Vandal army under King Gelimer. The battle brought these two principal commanders into direct confrontation near the outset of the Byzantine campaign to reassert imperial authority over the former Roman province of North Africa. The forces engaged included Belisarius and his subordinates John the Armenian and Calonymus on the Byzantine side, against Gelimer and Ammatas commanding the Vandals. With a recorded Byzantine force of approximately 10,000, the engagement represented a significant commitment of imperial military strength to the North African theater.

The Battle of Tricamarum was the decisive engagement of the Vandalic War, fought between Byzantine forces under Belisarius and a Vandal army commanded by King Gelimer and his brother Tzazo. The battle resolved what the earlier engagement at Ad Decimum had left unfinished: the destruction of organized Vandal military resistance in North Africa. With Gelimer and Tzazo commanding a force estimated at between 15,000 and 20,000 men against a Byzantine strength of roughly 8,000 to 11,000, the Vandals held a significant numerical advantage. The outcome ended the Vandal Kingdom's capacity to contest Byzantine control of the region, completing the reconquest of North Africa that Justinian I had launched in 533. Tricamarum thus stands as the battle that extinguished one of the major successor kingdoms to emerge from the western Roman collapse, restoring North African territories to imperial administration after roughly a century of Vandal rule.