The individual in international law — In general — Human rights and freedoms — Right to strike — Limits — Legality of order prohibiting lock operators on international waterway from exercising right to strike — Public policy — Whether such prohibition required by Convention of Luxembourg on Canalization of Moselle, 1956 — The law of France

State territory — Parts of — Rivers — International rivers — The principle of freedom of navigation on international rivers — Limits — Legality of order prohibiting lock operators from taking strike action — Convention of Luxembourg on Canalization of Moselle, 1956 — Whether requiring signatory States to prohibit strike action by such employees — The law of France