Whiskey Rebellion
In 1794 the Light Horse of the City of Philadelphia was redesignated as the First Troop, Philadelphia City Cavalry. In that same year the unit was called into service by President Washington to suppress the Whiskey Rebellion, an uprising of farmers in western Pennsylvania challenging the collection of a federal excise tax on whiskey. The Whiskey Rebellion was the first grassroots challenge to the authority of the new national government to enforce federal laws.