1. the Greek god of war, Latin Mars.

In ancient Greek art, the following deities were often shown with certain items/clothing with them, so that the god or goddess could be recognized.

# Hades- Usually depicted with a dark beard. Has a Helmet of Invisibility which makes the wearer unable to be seen. Rides in a golden chariot drawn by four immortal horses. Possesses a bird-tipped sceptre. # Athene- Wears armor (shield/spear/helmet) a lot, but not always. Possesses an aegis (a shawl/cloak-type thing).

# Apollo- Most often has his golden bow and arrows. Golden chariot with four horses.

# Artemis- Has a set of silver arrows with a silver bow. Wears a short chiton, cut short to be suitable for hunting.

# Aphrodite- A beautiful woman, often accompanied by a young winged boy (Eros, her son). Usually shown as nude. After her birth, Aphrodite rose from the foam of the ocean and where she stepped, flowers appeared.

# Hermes- Has a herald's wand (kerykeion). Earlier art depicts him as an older man with a dark beard, whereas later, he is a beardless, good-looking young man. Might have winged shoes, a winged traveler's cap, or chlamys cloak. # Ares- Can appear as any person from a younger, beardless man to a hardened, older one. Usually wears armor (shield/spear/helmet).

# Hephaestus- Strong, muscular chest, but weak/lame legs. Often depicted riding a donkey and carrying smith tools (hammer/tongs).

# Zeus- A regal, older man with a dark beard. Might have with him an eagle, his sceptre, and/or lightning bolts. Carries an aegis, like Athene, but in his case, it might be a shield covered in goat-skin.

# Hera- Wears a crown and sits on a golden throne. Sometimes carries a lotus-tipped sceptre. Might be accompanied by a lion, cockoo, or hawk. Has a chariot with two horses.

# Poseidon- An older man with a dark beard. Most often holds a trident. Sea monsters play around his chariot of hippocamps or horses when he's riding on the waves.

Actually the Roman gods did not "get" their names from their Greek counterparts; basically what happened is that Roman and Greek religion come from the same Indo-European origin and share many of the same stories and gods/figures, so ancient peoples recognzied Greek gods as having Roman equivalents. The same is true of Nordic gods, incidentally. So, the god of war in Rome was Mars, and the god of war in Greece was Ares, and the god of war was Odin (or Woden in Old English). All three religions (and others) come from the same origin, so similar stories are shared by peoples as far flung as the Irish, Russians, and Indians, too.

So you don't have to read the whole thing: It is Ares, the Greek god of war.

Ares' Roman name is Mars. That's where the planet got its name.
Athena you failure of spelling!

I apologise for above-answering's behaviour, Questioner. Also, I apologise for the misleading answer he/she has provided.

Mars was named after the Roman God, Mars, whose Greek name is Ares. The planet's reddish appearance reminded the Romans of blood, and since blood is inevitable during war, they called it Mars.