In Greek mythology, Deimos /ˈdaɪmɒs/ (Ancient Greek: Δεῖμος, lit. 'fear' pronounced [dêːmos]) is the personification of fear. He is the son of Ares and Aphrodite, and the brother of Phobos. Deimos served to represent the feelings of dread and terror that befell those before a battle, while Phobos personified feelings of fear and panic in the midst of battle. Deimos mainly appears in an assistant role to his father, who causes disorder in armies.