War — In general — Enforcement of laws of war — Reprisals — Retaliatory legislation — Presumption of proportionality.

War — In general — Effects of treaties of peace — Analogous instruments — Convention on the Settlement of Matters Arising out of the War and Occupation, 1952 — 1954 — Meaning of discriminatory treatment.

War — Effects of outbreak of — On enemy subjects with regard to property and other rights — Patent rights — Effect of German legislation during Second World War — Whether confiscatory of rights of patent owner — Retaliatory legislation — Presumption of proportionality — Appropriation of royalties by German Government — Whether constituting “discriminatory” treatment under Convention on Settlement of Matters Arising out of the War and Occupation, 1952–1954.