Ursus (Individual Whirlwind-class WarShip)
As at December 3059 the Whirlwind-class destroyer Ursus was serving as the CGB Ursus within the Clan Ghost Bear touman and was part of a naval convoy moving through the Deep Periphery when it encountered Task Force SERPENT.
The Ursus was accompanied by a sister ship, the CGB Fire Fang and a Congress-class frigate, the CGB Shining Claw. The Shining Claw, Fire Fang and Ursus moved to engage Task Force SERPENT while attempting to buy time for the Invader-class JumpShip CGB Winter Wind to quick-charge and jump out of the system to warn the Clans of the presence of an Inner Sphere WarShip flotilla moving through the Deep Periphery.
The Inner Sphere forces led by the Com Guard Cameron-class battlecruiser ISS Invisible Truth were the victors in the engagement, subsequently dubbed Trafalgar, and the Ursus was destroyed; the Shining Claw was also lost, and the Task Force claimed the intact Fire Fang as isorla, along with some three hundred warriors and more than a thousand civilian caste members. The Winter Wind was unable to jump out before being boarded and captured, leaving the Clans unaware of the existence of Task Force SERPENT.
- Twilight of the Clans, p. 18, "Defender"
- Twilight of the Clans, p. 17, "Scenario 1: Trafalgar"
- Twilight of the Clans, p. 10, "Beyond The Periphery"