At first, the elf kingdom only needed to guard their border and let the Krugguar Emperor pass through. However, they never thought the monster overlord would change its path and pass through their territory to enter Tristall Woodland.
In this case, the elves will have no choice but to fight the Krugguar Emperor directly. The elf race is very territorial and will never accept an outsider easily. Except for Roundel city, the other areas are forbidden from outsiders.
Moreover, the elf race will never abandon any of their citizens like the other kingdom in case they are getting attacked or in war. The elf race has a very low fertility rate. Every elf is important to them.
They will never give up on their citizens or comrades without fighting. This trait may be their weakness but also their strength for them. This is also why they become one of the strongest races in Firuman.
