The Law of Nations or the Principles of Natural Law (1758)Emmerich de Vattel Of the Sovereign Who Wages an Unjust War§ 183. An unjust war gives no right whatever.§ 184. Great guilt of the sovereign who undertakes it.§ 185. His obligations.§ 186. Difficulty of repairing the injury he has done.§ 187. Whether the nation and the military are bound to any thing.
     1.    De Jure Belli et Pacis, lib. iii. cap. x.