Territory — Occupation of foreign territory in time of peace — Ryukyu Islands — Sole administration by United States after Second World War — Responsibilities of administrative authority — Civil administration under direct control of United States Executive — Contract between United States military forces and contractor to construct dam on islands — Whether military forces acting as agent or instrumentality of civil administration — Return of islands to Japan — Liability of United States for obligations arising under contract

Treaties — Effect in municipal law — Whether extinguishing contractual rights — Ryukyu Islands — Administration by United States — Contractor entitled to compensation under terms of contract with United States — Whether treaty returning islands to Japan extinguishing contractors accrued contractual rights — Treaty Providing for the Reversion of the Ryukyu Islands to Japan, 1972 — The law of the United States