International organization — The United Nations — Legal capacity of — Whether a sovereign power — Right to appear in legal proceedings — Immunity from jurisdiction — Basis of immunity — United Nations Charter (Articles 104 and 105) — Convention on Privileges and Immunities, 1946 (Section 2) — Whether immunity thereunder limited by Article 105 — Whether United Nations enjoys only such immunities as are necessary for fulfilment of its purposes — Wrongful acts of soldiers of U.N. Force in Congo — Effect of Section 29 of Convention — Creation by United Nations of courts for settlement of private disputes — Whether failure to create such courts a breach of Article 10 of Universal Declaration of Human Rights, 1948, and Article 6 of European Convention for Protection of Human Rights, 1950 — Whether immunity of United Nations conditional on creation of courts — Rights of individual against United Nations — Legal effect of Universal Declaration — Whether European Convention binding on United Nations — The law of Belgium.