States — Conduct of foreign relations — Request by company to State of nationality to enter into diplomatic negotiations with another State on its behalf or seize the International Court of Justice with dispute — Refusal by State of nationality to intervene — Whether subject to review by administrative tribunals

State responsibility — Acts and omissions of State organs and officials — Duty to provide diplomatic protection — Refusal of State of nationality to assist company in dispute with foreign company by entering into negotiations with foreign State — Whether such a refusal capable of engaging the responsibility of the State — The law of France