The Whip Bears
The 15th prefers to use Khaki rather than the standard Deneb tan paint scheme.
The Cavalry's insignia is a black rectangle surrounding the bust of a white horse, which in turn is set upon a golden box. Each unit's numerical designation is written in Roman numerals inside the box. The Fifteenth uses the standard Deneb insignia. Per FM:Federated Suns, pages 84 and 89.