The President directs that there must be no joint occupation with the insurgents. The United States, in the possession of Manila City, Manila Bay and Harbor, must preserve the peace and protect persons and property within the. territory occupied by their military and naval forces. The insurgents and all others must recognize the military occupation and authority of the United States and the cessation of hostilities proclaimed by the President. Use whatever means in your judgment are necessary to this end. All law-abiding people must be treated alike.
By order Secretary War:
William McKinley, Executive Order Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/205894