Warlords of Sigrdrifa: Sakura

The Pillars suddenly appeared above Earth, threatening all life. A god who called himself Odin came to the aid of humanity as it was driven to near complete defeat. To counter the Pillars, Odin declared a counterattack by bequeathing humanity with the battle maidens Walküres and the "herocraft" as their wings. Several years later, the battle between humanity and Pillars rages on, with men supporting the Walküres as they soar through the treacherous skies to save the world. Source: Aniplex