UN General Assembly
1980

268. The nature of a particular Government or its actions and policies, the conditions prevailing in another country, the suspected designs of foreign Powers in that country— none of those factors gives any State the right to interfere in the affairs of another. I must submit that even the plea of self-defence and security does not justify armed intervention, much less continued occupation by armed forces of other States. There are ways provided in the Charter and under international law for States to seek redress of grievances.