作さく戦せん地ち域いきさくせんちいきMeanings1nounarea of operation; operational areaMilitary or strategic term for the geographical area where a planned operation is conducted.部ぶ隊たいは作さく戦せん地ち域いきに展てん開かいした。The unit deployed to the area of operation.作さく戦せん地ち域いきの安あん全ぜんを確かく保ほする。Secure the operational area.