Behind of General Tempest's victories over all equestria are The Black Paw Warlocks. A powerful group of magic cats that attack from the shadows rapidly and deadly to open the path to General Tempest and her assault unit. Their loyalty is completely with the Storm King.

This is part of the planned alternate universe comic by Chedx, planned for a 2019 release date.

Here are some pictures that give you some insight into the world of "The Storm Kingdom".

The Storm King is utilizing and weaponizing everycreature in his kingdom, giving him a powerful and diverse military.

The military includes
"Storm Creatures, Ponies, Dragons, Changelings, Griffons, Yaks, Parrots, Abyssinians and Hippogriffs"

General Tempest Shadow
https://derpibooru.org/1738592?q=general+Tempest+Shadow&sd=desc&sf=created_at

The Storm Six
https://derpibooru.org/1738600?q=storm+kingdom