By far the most significant military action of the Flavian dynasty was Titus' siege and destruction of Jerusalem in 70 CE. The siege was bloody, and near genocidal in nature, but was considered a major victory for the Empire at the time, and was by far the largest military action of the Dynasty, in terms of man-power and scale.

The Pyrrhic War was fought between the rapidly growing Roman Republic (supported by Carthage) and the declining power of Magna Graecia. It was one of the most important conflicts in the Roman unification of Italy and contributed to the eventual Roman conquest of the Greek-speaking world.

The Social War was fought in the early years of the first century BCE, between Rome and an alliance of dissatisfied Italian city-states under Roman control. Lucius Sulla led Roman armies to many successful victories in the Social War, which enabled him to become powerful and popular enough to seize the dictatorship of Rome for himself.

The Battle of Carrhae was fought in 53 BCE between the forces of the Roman Republic (led by Marcus Crassus) and the forces of the Parthian Empire. The battle ended in defeat for the Roman armies and witnessed the death of Marcus Crassus. Crassus had been one of the members of the First Triumvirate, along with Caesar and Pompey, and the wealthiest man in Rome.

The First Triumvirate was an infamous unofficial alliance between Julius Caesar, Pompeius Magnus (Pompey the Great), and Marcus Crassus.

It lasted from roughly 59 BCE to 53 BCE and ended with the death of Marcus Crassus at the hands of the Parthians.

Following Marcus Crassus' death, Julius Caesar and Pompey would go on to fight a civil war with each other, ultimately ending in Pompey's death and firmly establishing Julius Caesar's role as dictator for life.

Cincinnatus was a consul of Rome during the era of the Roman Republic. He also served as temporary dictator during a time of great crisis. He led the defense of the city of Rome against invading “barbarians,” and, for voluntarily surrendering his absolute authority, he is often regarded as an example of honor and civic virtue.

The Social War was fought between Rome and her former allies in Italy. A collection of city-states who were dissatisfied with Roman rule in central and southern Italy rebelled in 91 BCE. They were swiftly crushed by the Roman Republic, but to prevent future conflict the government of the Roman Republic conceded to most of the rebels’ demands.

The Battle of Actium was a naval engagement fought between the forces of Octavian and the combined fleet of Mark Antony and Cleopatra in 31 BCE. It culminated in total victory for Octavian and brought to an end any realistic chance that Mark Antony had of winning the war of the Roman Republic. Mark Antony would soldier on for another year, but eventually his army deserted him and Cleopatra committed suicide.

Julius Caesar was the first Roman leader to attempt to invade Britain. He led a limited Roman invasion of the British Isles in 55 and 54 BCE, as part of the Gallic Wars. Several subsequent Roman leaders contributed to the gradual conquest of Britain, which was effectively completed in 43 CE, during the reign of the Emperor Claudius.

The Latin League was a confederation of geographically related cities and towns. After their unsuccessful was with Priscus they were "convinced" to join the Kingdom of Rome. Priscus also fought the Sabines, but this was after his aggression against the Latin League.