“O thus be it ever when free-men shall stand Between their lov’d homes and the war’s desolation…”
These possibly unfamiliar lines (they are from the last stanza of “The Star-Spangled Banner”) express the oldest and probably the most noble motive for fighting: defense of one’s hearth and homestead. It’s true that, pragmatically speaking, modern warfare has made nonsense of this motive—ask the survivors of the London blitz, Dresden, and Hiroshima. But the motive persists, and even in a clearly offensive war the invading armies always manage to convince themselves that they are doing it for the folks back home. Especially for the women. Since the advent of the photograph, few dead soldiers have been found without pictures of one or more females tucked into a wallet. Indeed, the most famous conflict of all time, the Trojan War, began because the Trojans abducted the beauteous Helen.