Proclamation 1315—Concerning the Shipment of Arms into Mexico
By the President of the United States of America
Whereas, a Joint Resolution of Congress, approved March 14, 1912, provides: "That whenever the President shall find that in any American country conditions of domestic violence exist which are promoted by the use of arms or munitions of war procured from the United States, and shall make proclamation thereof, it shall be unlawful to export except under such limitations as the President shall prescribe any arms or munitions of war from the United States to such country until otherwise ordered by the President or by Congress";
Now, therefore, I, Woodrow Wilson, President of the United States of America, do hereby proclaim that I have found that there exist in Mexico such conditions of domestic violence promoted by the use of arms or munitions of war procured from the United States as contemplated by the said Joint Resolution; and I do hereby admonish all citizens of the United States and every person to abstain from every violation of the provisions of the Joint Resolution above set forth, hereby made applicable to Mexico, and I do hereby warn them that all violations of such provisions will be rigorously prosecuted. And I do hereby enjoin upon all officers of the United States, charged with the execution of the laws thereof, the utmost diligence in preventing violations of the said Joint Resolution and this my Proclamation issued thereunder, and in bringing to trial and punishment any offenders against the same.
Done at the city of Washington this nineteenth day of October in the year of our Lord one thousand nine hundred and fifteen and of the Independence of the United States of America the one hundred and fortieth.
By the President:
Robert Lansing, Secretary of State.
Note: On the same day (October 19) the President ordered that an exception be made in favor of the Carranza de facto government, by permitting arms shipments into the territory under that government's control.
Woodrow Wilson, Proclamation 1315—Concerning the Shipment of Arms into Mexico Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/317585