Treaties — In general — Function of treaties — Treaties as a source of international law — Whether rule of international law can be overridden by treaty — Position in case of conflict with supreme ideal of law — The law of Japan

War and neutrality — Warfare on land — Occupation of enemy territory — Respect for private property — Whether a principle of customary international law — Whether applicable in the Second World War — Whether possible to do away with the principle by treaty — The law of Japan

International law in general — Sources — General customary law and special law — General agreements and special agreements — Whether special law prevails in case of conflict — Whether rule of international law can be overridden by treaty — Principle of respect for private property in occupied territory in time of war — Whether a rule of customary international law — How established as a rule of customary international law — Whether a supreme ideal of law — Whether prevails over treaties in conflict with it — The law of Japan