There were a lot of benefits to be had by sending soldiers to attack the vampires with the support of the Kunuts, but there were also many reasons to be cautious about this approach.
The Yggdrasil civilization doesn't want too many soldiers to do this dangerous work. So they limited the number of soldiers to 10,000.
They also made it that only two star soldiers could participate in the battle. These were soldiers who had participated in an expedition before and were capable enough to be significant on the battlefield but not significant enough to cause too much loss to the army if they died.
This showed the level of sincerity of the Yggdrasil civilization in assisting the Kunuts. It was sincere enough because they could have sent the noons without stars or the one-star soldiers who barely survived an expedition.
