The Roman legion (Latin: legiō, [ˈɫɛɡioː]) was the largest military unit of the Roman army, composed of 5,200 infantry and 300 equites (cavalry) in the period of the Roman Republic (509 BC–27 BC) and of 5,600 infantry and 200 auxilia in the period of …

An aquila (Classical Latin: [ˈakᶣɪla], "eagle") was a prominent symbol used in ancient Rome, especially as the standard of a Roman legion.A legionary known as an aquilifer, the "eagle-bearer", carried this standard.Each legion carried one eagle. The eagle had quasi-religious importance to the Roman soldier, far beyond being merely a symbol of his legion. To lose a standard was …

The Roman army is the military of ancient Rome, the forces used by the Roman Kingdom, Roman Republic and later Roman Empire.Its infantry for much of its history was the Roman legion.Rome also had a navy. The size of the army in the late Roman Empire was about 128,000 – 179,200 men. It was very well organized.