Overview
Phobos is the god and personification of fear and panic in Greek mythology. Phobos was the son of Ares and Aphrodite, and the brother of Deimos. He does not have a major role in mythology outside of being his father's attendant.
In Classical Greek mythology, Phobos exists as both the god of and personification of the fear brought by war. In Roman mythology, he has also been referred to as Pavor or Terror.
Mythology
In Hesiod's Theogony, Phobos is the son of Ares and Aphrodite, and the sibling of Deimos and Harmonia. He mainly appears in an assistant role to his father and causes disorder in battle. In the Iliad, he accompanied his father into battle along with the goddess Eris (discord) and his brother Deimos (Dread). In Hesiod's Shield of Herakles, Phobos and Deimos accompany Ares into battle and remove him from the field once he is injured by Herakles. In Nonnus' Dionysiaca, Zeus arms Phobos with lightning and Deimos with thunder to frighten Typhon. Later in the work, Phobos and Deimos act as Ares's charioteers to battle the god Dionysus during his war against the Indians.
In the Seven Against Thebes by Aeschylus, the seven warriors slaughter a bull over a black shield and then "...touching the bull's gore with their hands they swore an oath by Ares, by Enyo, and by Rout [Phobos]". According to Stesichorus, Ares's son, Kyknos, "...beheaded strangers who came along in order to build a temple to Phobos (fear) from the skulls."
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