The Vigilance led the path forward, so that the Ironhand clan could meet with a much smaller Orc clan on another side of the galaxy. In fact, they were currently in Alfheim Space, raiding a minor power over resources.
The clan numbered in the tens of millions and, because of this; it was considered on the brink of annihilation. They could only raid the frontier worlds of minor powers, and even then, they suffered losses with each battle waged.
But Erich's goal in gaining the loyalty of this clan, who we're known as the Bloodied Hand Clan, was not to add additional warriors to his ranks. But instead, to gain the Orcish women of the clan, so that the warriors of the Ironhand clan could breed more than they already were.
Erich wanted an Army of Orcs that was unrivaled, and to achieve this he needed to focus on uniting smaller clans into his Horde, and using those clans to breed a new generation of elite warriors who were equipped with the best armor and weapons in the galaxy.