Long Yunxin had heard about the Battle of Karan before.
It was the most crucial procedure on Wuying Qi's rise to the peak of power. All his accomplishments later were based on the event.
In the battle, Wuying Qi 'sacrificed' eight million civilians and wounded soldiers on Karan, blew up the supreme command center of the invaders from the Covenant Alliance, took over the military assets from Covenant Alliance, and seized more than ten border worlds.
Whether or not it was worthwhile to sacrifice eight million to save eight billion was a tricky question. It was also a heated topic that often appeared in the debate matches in Flying Star University.
Long Yunxin had once given it some thought herself.