Sleipnir

Sleipnir is a large two-horse drawn carriage created by the Russian Orthodox Church to transport magical items or people through snowy plains.

Etymology
The word Sleipnir in Old Norse means "slippy" or "the slipper."

Concept and Origin
According to Prose Edda written by Snorri Sturluson, Sleipnir is an eight-legged horse and is known as Odin's steed. It can run faster than the wind, and can go anywhere in Heaven, Earth, and Hell.

Appearance
It resembles a large truck reinforced with heavy-looking metal at various points and they had a military feel to them. It is being pulled by two horses made of silver metal.

World War III Arc

 * Main article:World War III

While Touma and Lessar are discussing their next course of actions, they saw several Sleipnirs to which Touma mistakes as large military trucks until he saw the horses pulling them. Lessar then explains what it is and told Touma that villagers are probably being transported to concentration camps. Touma then planned to save the villagers.