The Yelan Army knew that if they stayed any longer on the Great Plains, they would end up cornered sooner or later, so they had decided to retreat from the very start.
Aware that they wouldn't be able to retrieve the bodies of their countrymen once they did that, they decided to follow through with Lux's plans to use their corpses as fuel for his Corpse Explosion.
Although this was something they didn't want to see happen, they believed that their countrymen would be happy if their remains had been used to protect their Kingdom.
"As expected, they had no plans to pursue us right away," Great General Sherlock said as he gazed in the distance.
"They're busy burning the bodies of the dead from a safe distance as a precaution against Lux's ability," Great General Watson commented. "Still, it won't be long before they make their move."
Great General Sherlock nodded.
They had already prepared for this outcome.