Not exactly, though I guess this is splitting hairs. Valkyries bring people who die in combat to Valhalla, where they live out an afterlife of feasting and fighting, preparing for the final battle at Ragnarök...
... oh.
Amassing an army for an end-of-the-world battle, huh...
Hmm, so maybe MX will bring an army full of dead people that will cause The Keyblade War that he so desires, after the X-Blade has been forged? Since he has spoken that there isn`t many wielders anymore, why not try and use the dead? All there could be far more Keyblade wielders still living and he just dosen`t know it.