US Presidency
1916

It took the position that such a policy could not be pursued without the practical certainty of gross and palpable violations of the law of nations, particularly if submarine craft were to be employed as its instruments, inasmuch as the rules prescribed by that law, rules founded upon principles of humanity and established for the protection of the lives of non combatants at sea, could not in the nature of the case be observed by such vessels. It based its protest on the ground that persons of neutral nationality and vessels of neutral ownership would be exposed to extreme and intolerable risks, and that no right to close any part of the high seas against their use or to expose them to such risks could lawfully be asserted by any belligerent government. The law of nations in these matters, upon which the Government of the United States based its protest, is not of recent origin or founded upon merely arbitrary principles set up by convention.