The Twenty-seventh Dieron Regulars fought alongside the Second Alshain Regulars on Soverzene; both regiments were determined to exact a toll on the Ghost Bears, and Tai-sa Jasick Yoshiro of the Twenty-seventh and Tai-sa Ano Tars of the Second established supply caches across the main continent on Soverzene to support the mobile defense they planned to conduct. Soverzene had two major cities, one of which - Averti - was assigned to the Twenty-seventh to protect. Khan Bjorn Jorgensson deployed the entire of Beta Galaxy in the assault on Soverzene once he learned that there were two DCMS line regiments on the planet, and the Twenty-seventh found itself facing both the Twelfth and Fourteenth Bear Chevaliers. The Twenty-seventh had prepared a trap near the Killimangero fjords, and used air strikes to herd the two Ghost Bear Clusters towards the narrow waterways; aware they were being manipulated, the Chevaliers were cautious in their approach, and when they found two companies of 'Mechs from the Twenty-seventh waiting at the edge of the waterways, only a single Trinary was sent forward to investigate. The two companies from the Twenty-seventh used jump jets to retreat down one cliff face and then up another, while detonating explosives that tumbled the Trinary down into the fjord.
Whilst the gambit was successful, its effects were limited because only a few of the Chevalier OmniMechs were destroyed by the trap, and the retreating 'Mech companies were flanked by the Fourteenth, sending many of the Twenty-seventh's 'Mechs into the fjord in turn. It was at this point that Yoshiro counter-attacked with the remainder of the Twenty-seventh, emerging from the cover that had been provided by trees within the fjord, provoking the bulk of the Twelfth and Fourteenth Bear Chevaliers to plunge into the waterways to battle them. Yoshiro then quickly led his forces into escape tunnels hewn roughly into the rock, believing that the Ghost Bears were in pursuit, and detonated explosives hidden within the tunnels when his forces were clear. Content that his troops were victorious, Yoshiro led the Twenty-seventh back to Averti, only to fall victim to the Ghost Bears that night; the Ghost Bears had suspected a trap, and used Elementals to explore the tunnels while the 'Mechs were battling within the fjord, and those Elementals had found and disarmed the bulk of the explosives. As a result, the attack launched that night at Averti saw the Ghost Bears capture Averti by surprise and with minimal bloodshed.
While the Twenty-seventh had been battling the two clusters of Chevaliers, the Second had found itself trapped between two full-strength assault clusters. Facing down the 304th and the 332nd Assault Clusters, the Second found itself being harried and hounded until it had little choice but to retreat to their ammunition supply base. That retreat revealed the base's location, which the Ghost Bears promptly attacked and destroyed using aerospace fighters; this left the second short on ammunition and retreating north, with the 304th Assault Cluster hot on their heels. Herded by Clan aerospace fighters, the Second retreated into a forest, not realizing that the 332nd were in place and waiting for them. Pinned between the two Assault Clusters, the Second took heavy damage, but some survivors managed to slip free.
Having taken heavy losses, the survivors from the Second staged a rescue mission at Averti, freeing those survivors of the Twenty-seventh who had been captured, and their equipment; the survivors from both regiments then spent two weeks being pursued and hunted by the Ghost Bears across Soverzene before all of the Bloodnamed warriors were recalled to Strana Mechty for the election of a new ilKhan, at which point some elements of the two DCMS regiments managed to escape off-world.
It is not known if he was one of the survivors.
- Invading Clans, p. 24-25, "Wave Four: Redemption"
- 20-Year Update, p. 43