The army of the High Elf Kingdom is undeniably an ace army, but the reason why the High Elf Kingdom is vulnerable without allies, even the ranger forces wouldn't engage trolls directly, opting instead for guerrilla tactics, is because the high elf bodies are relatively frail.
By comparison, they lack enough robust tribesmen to become warriors or other frontline professions, and even their melee fighters are agile types like rogues or spell-breakers specialized in dispelling magic.
In Ancient Times, elves were unified, with high elves known as Upper Elves, and naturally Ancient Elves who couldn't wield magic stood as the front line; at that time, druids and warriors were rampant, so they had no worries.
Later on, they were exiled and arrived at what was originally the location of Undercity, but after sensing the underground ancient god's aura, they abandoned that place and continued northward.
