The Law of Nations or the Principles of Natural Law (1758)Emmerich de Vattel Of War, — its Different Kinds — and the Right of Making War§ 1. Definition of war.§ 2. Public war.§ 3. Right of making war.§ 4. It belongs only to the sovereign power.§ 5. Defensive and offensive war.
     1.    I here speak of the right considered in itself. But as a king of England cannot, without the concurrence of parliament, either raise money or compel his subjects to take up arms, his right of making war is, in fact, but a slender prerogative, unless the parliament second him with supplies.