The security provisions of the contemporary system of international organization are based upon the principle of collective security. As it was originally stated in Article 16 of the Covenant of the League of Nations, “should any Member of the League resort to war in disregard of its covenants…it shall ipso facto be deemed to have committed an act of war against all other Members of the League.” On this principle of solidarity are equally founded the concepts of collective security included within the Charter of the United Nations.