When reading, I met this expression which describes the looting of an enemy country, by the MC's kingdom/territory. Many thanks to anyone who can explain the correct meaning to me.
略奪のかぎりをつくしてきた
My guess is "...they tried their best to loot/rob from other kingdoms/nations". But I'm not sure.
Full sentence:
戦闘国家アニマ……アルタニ領内への侵攻を繰り返し、略奪のかぎりをつくしてきたライドネル王国の仇敵とも言える大陸の東にある国。