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
국가는 무력행사를 통해 자신의 이익을 보호할 수 있다.gukganeun mulyeokhaengsaleul tonghae jasineui iigeul bohohal su itda.A country can protect its interests through the use of force.