Wyrmguard

The Wyrmguard are the Guardian's shocktroops in Ultima IX. They can be easily identified by their dragonwing-armour (hence the name), and are basically the army of the Guardian in Britannia. They are mostly armed with broadswords and seldom bother with shields. Also, some of them have learned the art of dragon-riding.

However, it is not explained:


 * 1) from where they come.
 * 2) why the Guardian hadn't used them to conquer the land.

In the fan-written Dialogue Patch however, it is made clear, that these are soldiers from another world already conquered by the Guardian, making them most likely soldiers from Atarka.

Trivia

 * Wyrmguard Armour can also be used by the Avatar (and no one cares!). The plan was originally for NPCs to react if the Avatar was wearing a Wyrmguard, but this feature ended being cut like many others.
 * Note that while Wyrmguard are supposed to be Dragon Riders and this fact is referenced several time throughout the game - we never once see a Wyrmguard riding a dragon during the game, most likely because of technical limitations.