military The Most Important Battles in Ancient Roman History  

Aaron Edwards
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List Rules Vote up the most interesting battles from ancient Rome.

The Romans had one of the largest and longest-lasting civilizations in the history of the world. Stretching from Britain all the way to Africa and the Middle East, Rome truly wasn't built in a day. Instead, it was built over centuries of military conquest and constant vigilance. A beast as large as Rome must be constantly fed with an influx of new riches and slaves to keep the economy going, which is why capturing new territory was so essential. The most important battles in ancient Rome weren't just for glory, they were key to the continued survival of the society as a whole.

Whether it be subjugating the Gauls, defending against Germanic tribes, or winning a civil war, the Romans lived for combat and victory. Near the end of the Empire's existence, they lost more battles than they won - however, even in their final days, they were a force to be reckoned with. Read on below to learn about some of their most fascinating conflicts. 

Battle of Actium is listed (or ranked) 1 on the list The Most Important Battles in Ancient Roman History
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A naval battle between Octavian forces and those of Mark Antony and Cleopatra, the Battle of Actium was also immortalized by Shakespeare. When Octavian gained the upper hand early, Cleopatra fled and Antony broke away from his men to follow her. The remaining troops under Antony's command surrendered to Octavian. This was the final true battle between Octavian and Mark Antony, setting the stage for Octavian's dominion over all of Rome.  see more on Battle of Actium
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Battle of the Trebia (218 BCE)


Battle of the Trebia is listed (or ranked) 2 on the list The Most Important Battles in Ancient Roman History
Photo: Freebase/Public domain
Hannibal has gone down in history as Rome's greatest adversary, and this battle was the start of that reputation. The Carthaginian commander positioned himself on the far side of a freezing cold river, which the Roman army had to cross in order to attack. The Roman soldiers were so tired, wet, and cold by the time they reached the other side, they were easily slaughtered by Hannibal's forces. 
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Battle of Cannae (216 BCE)


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Seen by many as the single greatest military defeat in Rome's history, the Battle of Cannae was also Hannibal's greatest triumph. Rome sent a massive army against him, dwarfing his forces with sheer numbers. When the Romans attacked, Hannibal's center of infantry immediately retreated. When the Romans pressed, the center held its ground while Hannibal's spearmen hit the Romans on each flank. A cavalry charge from the rear had the Roman army completely enveloped, thus their numbers counted for nothing. 
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Battle of Lake Trasimene (217 BCE)


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Hannibal set his sights on an army commanded by the new Roman consul Flaminius. Hannibal positioned himself so the Romans were pursuing his forces until they thought they had him cornered at Lake Trasimene. The Romans charged, only to realize hidden infantry were now blocking off their line of retreat. Hannibal's cavalry then charged the Roman's only exposed flank. With three of their sides full of enemies and a lake behind them, the Romans were surrounded and massacred