Gauls
In 58 BC Julius Caesar launched the Gallic Wars and had conquered the whole of Gaul by 51 BC. He noted that the Gauls (Celtae) were one of the three primary peoples in the area, along with the Aquitanians and the Belgae. Caesar's motivation for the invasion seems to have been his need for gold to pay off his debts and for a successful military expedition to boost his political career. The people of Gaul could provide him with both. So much gold was looted from Gaul that after the war the price of gold fell by as much as 20%. While they were militarily just as brave as the Romans, the internal division between the Gallic tribes guaranteed an easy victory for Caesar, and Vercingetorix's attempt to unite the Gauls against Roman invasion came too late. After the annexation of Gaul a mixed Gallo-Roman culture began to emerge.
Lazic War
The Lazic War, also known as the Colchidian War or in Georgian historiography as the Great War of Egrisi (Georgian: ეგრისის დიდი ომი, "Egrisis Didi Omi"), was fought between the East Roman (Byzantine) Empire and the Sasanian Empire for control of the ancient Georgian region of Lazica. The Lazic War lasted for twenty years, from 541 to 562, with varying success and ended in a victory for the Persians, who obtained an annual tribute in exchange for ending the war. The Lazic War is narrated in detail in the works of Procopius of Caesarea and Agathias.