The Roman and Greek gods of war, identified with each other as the two mythologies merged — but they were not regarded the same way. Ares was violent and largely disliked by the Greeks; Mars was a major, respected Roman deity, second only to Jupiter, associated with agriculture as well as war.
The core difference
The pairing is standard: Roman writers matched their gods to Greek ones, and Mars was matched to Ares. But this is the pairing where the two characters least resemble each other.
- Ares — Greek, the destructive violence of war. Greek sources treat him with open dislike; he loses fights, complains, and is scorned by other gods.
- Mars — Roman, a dignified state deity. He was a guardian of agriculture as well as war, and was regarded as a father of the Roman people through Romulus and Remus.
Why the difference matters
Rome treated military discipline as a civic virtue, so its war god was honourable rather than merely brutal. That is why martial in English means soldierly and orderly, while the Greek attitude to Ares left no comparable positive word behind.
What each left in English
- March — the month, named for Mars; the traditional start of the campaigning season.
- martial — of war: martial arts, martial law.
- Mars — the planet, red and so associated with blood and war.
- Areopagus — the hill in Athens named for Ares, where the council met.
The wider pairings
- Zeus → Jupiter
- Hera → Juno
- Aphrodite → Venus
- Hephaestus → Vulcan
- Athena → Minerva
Athena and Minerva show the same kind of mismatch: Athena was a war goddess of strategy as much as craft, which sat alongside Ares as thought against fury.
Frequently asked questions
Are Mars and Ares the same god?
They were identified with each other as Roman and Greek counterparts, but were regarded very differently — Ares was disliked by the Greeks, while Mars was a respected Roman state deity.
Why is the planet called Mars?
The planets carry Roman names in the European tradition, and Mars is red, associating it with blood and war.
Where does "martial" come from?
From Mars — meaning soldierly or of war, as in martial arts and martial law. Ares left no equivalent positive word in English.