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
군대는 공중정찰을 통해 적의 움직임을 감시한다.gundaeneun gongjungjeongchareul tonghae jeog-ui umjigimeul gamsihanda.The military monitors enemy movements through air patrol.