Why We Are at War: Messages to the Congress January to April 1917

It is inconceivable that the people of the United States should play no part in that great enterprise. To take part in such a service will be the opportunity for which they have sought to prepare themselves by the very principles and purposes of their polity and the approved practices of their Government, ever since the days when they set up a new nation in the high and honorable hope that it might in all that it was and did show mankind the way to liberty.

They cannot, in honor, withhold the service to which they are now about to be challenged. They do not wish to withhold it. But they owe it to themselves and to the other nations of the world to state the conditions under which they will feel free to render it. That service is nothing less than this—to add their authority and their power to the authority and force of other nations to guarantee peace and justice throughout the world. Such a settlement cannot now be long postponed. It is right that before it comes this Government should frankly formulate the conditions upon which it would feel justified in asking our people to approve its formal and solemn adherence to a league for peace. I am here to attempt to state those conditions.