後こう方ほう地ち域いき警けい備びMeanings1nounrear area securityMilitary term for security operations in the rear area, protecting supply lines, bases, and support units.後こう方ほう地ち域いき警けい備びは補ほ給きゅう線せんの安あん全ぜんを確かく保ほする任にん務むだ。Rear area security is a mission to ensure the safety of supply lines.
