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The Eggnog Riot was a riot that took place at the United States Military Academy in West Point, New York on 24–25 December 1826. It was caused by the smuggling of whiskey by three cadets across the Hudson River two days prior to the incident to make eggnog for a Christmas Day party in the North Barracks that would eventually involve more than one-third of the cadet class by the time the riot ceased on Christmas morning.

Reveille sounded at 06:05 along with gunfire, glass breaking, profanity by cadets, cries of pain, and threats on Academy officials. North Barracks residents who were not partying from the eggnog were appalled at the damaged property. Some of the cadets remained in their rooms drinking. Cadets in the South Barracks were well rested while other cadets in the North Barracks were disheveled. Other cadets involved appeared in parade formation though they were drunk.