The Prydian Army is composed of many millions of Human soldiers from the vast Planetary Militia to the massed ranks of the steadfast Muster and the regiments of the proud Retained Knights. There are other troop types too such as the super heavy Desteria Knights, the illustrious Starvaulters and more. The uniform of the Prydian Army is the famous red and white but these codes can be given any colours you desire for other Baronial Forces, Private Armies, Condots (Mercenaries) and more.
The Muster make up the bulk of the mobile Prydian Army and the Marcher Barons too. They lack the finesse of the Retained Knights but make up for it with better training than the Planetary Militia, with quite the heroics too.