Carthago delenda est

…[O]ften abbreviated to “Carthago delenda est” (English: “Carthage must be destroyed”), is a Latin oratorical phrase pronounced by Cato the Censor, a famous politician of the Roman Republic. The phrase originates from debates held in the Roman Senate prior to the Third Punic War between Rome and Carthage, where Cato is said to have used it as the conclusion to all his speeches in order to push for the war.

Source: Carthago delenda est – Wikipedia