Long ago, two big armies fought. 
Long ago, two big armies fought in a land called Italy. 
One leader was named Hannibal. He led a very large army. He was a very smart leader.
The other side was Rome. Rome had a much bigger army. They had many foot soldiers.
But Hannibal had a clever plan. He used his army to surround the Romans.
This plan worked very well. The Roman army lost the fight. It was a very hard day for Rome.
Rome did not give up. They fought for many more years.
They worked hard to win the war in the end.
Long ago, a great war took place in Italy. 
It was a fight between Rome and Carthage. A leader named Hannibal led the Carthaginian army. He was a very smart leader. He led many different groups of people. Some were from Gaul and some were from Spain.
The Romans had a much larger army. They had about 86,000 troops. Two Roman leaders, Varro and Paullus, were in charge. They met Hannibal near a place called Cannae.
On August 2, 216 BC, the battle began. Hannibal used a clever plan to win. He used his army to surround the Romans. This is called a double envelopment. The Roman army was trapped. It was a very bad day for Rome. Many Roman soldiers died in the fight.
Rome felt great fear after the loss. They had to find new ways to fight. They even asked people like slaves to join the army. Rome did not surrender to Hannibal. They kept fighting for 14 more years. In the end, Rome won the war at Zama.
The Battle of Cannae was a massive fight during the Second Punic War. This war was between the Roman Republic and Carthage. It took place on August 2, 216 BC. The battle happened near a small village called Cannae in southeast Italy. 
To win the battle, Hannibal used a special plan called a double envelopment.
Before this battle, Hannibal had already moved through the Alps to reach Italy. He had won other fights at the Trebia River and Lake Trasimene. The Romans wanted to stop him, so they built a huge new army. They used eight legions to make this force. This army was much larger than the ones they usually used. The Romans hoped their great numbers would be enough to defeat Hannibal once and for all.

The loss at Cannae was very hard for Rome. Many soldiers died, and only about 15,000 Romans survived.
The Battle of Cannae was a major military engagement during the Second Punic War. This war was fought between the Roman Republic and Carthage. The battle took place on August 2, 216 BC, near the village of Cannae in Apulia, Italy. 
To understand the battle, one must look at the Roman strategy. The Romans had suffered previous losses at the Trebia River and Lake Trasimene. To respond, they raised a massive army of unprecedented size. They deployed eight legions instead of their usual four. This force included approximately 86,000 Roman and allied troops.
Hannibal's army was smaller but very diverse. It consisted of roughly 40,000 to 50,000 soldiers. His troops came from many regions, including Libya, Gaul, and Hispania. His forces included specialized units like Balearic slingers. 
The battle was decided by a tactic called double envelopment.
The results of the battle were devastating for the Roman Republic. It was one of the most lethal single days of fighting in ancient history. Most of the Roman army was killed during the encirclement. Only about 15,000 Romans survived, and many of those were from camp garrisons. The loss was so great that it caused intense panic in the city of Rome. To defend themselves, Roman authorities took extreme measures. They even enlisted criminals, debtors, and slaves to form new legions.
In the aftermath, the political landscape of Italy began to shift. Several Italian city-states, such as Capua, defected from Rome to join Carthage. Hannibal offered to ransom the Roman survivors, but the Roman leaders refused his offer. Despite the massive loss of men and equipment, Rome did not surrender. They continued to fight for 14 more years. The conflict finally ended when Rome achieved victory at the Battle of Zama.
Cannae remains a landmark in the study of military science. It demonstrates how a smaller, well-organized force can defeat a much larger opponent. The battle shows the importance of terrain, cavalry, and psychological leadership. Today, military strategists still analyze Hannibal's movements to teach the principles of encirclement.
🖼️ Images & Media (10)
More to explore
✨ What else?
Related topics you might enjoy
🔬 Go deeper
More advanced topics to explore
🪜 Step back
Simpler topics to build understanding
What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.