Father of War.
They are.
They are numinous, yes, but also physical, earthy, tangibly here Deities.
In their respective pantheons, they are Gods of war, violence, virility, and raw passion, but also duty, loyalty, devotion, and fatherhood.
Similar, yes, but not the same - usually.
Though the two Gods are often conflated in popular culture, they manifest to their devotees today as distinct entities.
Ares and Mars.
Father of Discord and Harmony.
Father of Courage.
Father of Fear.
Father of Peace.
Father of War