Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
작전 통제는 군사 작전의 성공에 매우 중요하다.jakjeon tongje-neun gunsa jakjeon-ui seonggong-e maeu jungyohada.Operational control is very important for the success of military operations.