Note: Do not rely on this information. It is very old.
Walkyries (Icelandic Valkyrjur, "Choosers of the Slain"), the "shield-maidens" sent by Odin to every battlefield to choose the men doomed to death, and determine the victory. When the battle is over, the Einherjar, or fallen heroes, are borne away by the Walkyries to Walhalla (q.v.).