[rxsid]

President William McKinley (again, to a different department), on the military right derived from the law of nations:

"Executive Order
May 19, 1898

The SECRETARY OF THE TREASURY,

...

As the levy of all contributions in territory occupied by a belligerent is a military right derived from the law of nations, the collection and distribution of duties and taxes in the Philippines during the military occupation of the United States will be made, under the orders of the Secretary of War and the Secretary of the Navy, by the military or naval commanders, as the case may be, of the ports or places which may be in the possession of our forces. Your report is desired in order that I may be able to give the proper directions to the Department of War and of the Navy. "

[rxsid]

President Grover Cleveland on the law of nations applying to relations between individual citizens (& not just between nations)

"Special Message
December 18, 1893

To the Senate and House of Representatives:

...

The law of nations is rounded upon reason and justice, and the rules of conduct governing individual relations between citizens or subjects of a civilized state are equally applicable as between enlightened nations. "

[Red Steel]

Good stuff. :-)