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.
Galley
From around 1450, three major naval powers established a dominance over different parts of the Mediterranean using galleys as their primary weapons at sea: the Ottomans in the east, Venice in the center and Habsburg Spain in the west. The core of their fleets were concentrated in the three major, wholly dependable naval bases in the Mediterranean: Constantinople, Venice and Barcelona. Naval warfare in the 16th century Mediterranean was fought mostly on a smaller scale, with raiding and minor actions dominating. Only three truly major fleet engagements were actually fought in the 16th century: the battles of Preveza in 1538, Djerba in 1560 and Lepanto in 1571. Lepanto became the last large all-galley battle ever, and was also one of the largest battle in terms of participants anywhere in early modern Europe before the Napoleonic Wars.