December 22, 1898
The SECRETARY OF WAR:
The major-general commanding the United States forces in Cuba and the senior naval officer of the American fleet in the port of Havana are directed to observe such arrangements and ceremonies for the evacuation of Havana, to take place on January 1, 1899, as may be communicated to them by the United States commissioners on evacuation. They will aid in carrying out such arrangements.
WILLIAM MCKINLEY
William McKinley, Executive Order Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/205926