Military and Paramilitary Activities in and Against Nicaragua (Nicaragua v. United States) (Jurisdiction and Admissibility)

Nicaragua (plaintiff) sued the United States (defendant) in the International Court of Justice (ICJ) over military and paramilitary activities against it, invoking both countries' Article 36 declarations accepting compulsory ICJ jurisdiction. Nicaragua's formal 1929 ratification of its declaration under the Permanent Court of International Justice had never actually reached the League of Nations, and just three days before Nicaragua filed suit, the United States deposited a declaration stating its own prior acceptance no longer applied to disputes with Central American states, preferring regional dispute resolution instead.