Ares is the god of war, bloodlust, courage and civil order. The son of Zeus and Hera, he in conjunction with Athena command the divine army when Olympus go to war. Ares is not a likeable guy. Merely looking at him is enough to incite murderous rage, the desire to harm and be aggressive out of a mortal or a demigod.
Likewise, can a demigod be killed?
There's no real suggestion in the books, that I recall, that suggests demigods live longer than other mortals. (There is some suggestion that they tend to die young, especially those killed before they can reach camp.) The demigods in the Greek myths Riordan's books are based on also tended to live mortal lifespans.
Who are the Greek demigods?
The most famous of the demigods were Achilles, Hercules, Theseus, Perseus and Helen of Troy. A short summary of the mythology surrounding these famous Greek demigods are detailed below. There are many myths and legend surrounding the Greek Demigod Achilles.