The First Troop Philadelphia City Cavalry, or "First City Troop", was organized in 1774 as the Light Horse of the City of Philadelphia, often referred to as the Philadelphia Light Horse, one of the first patriotic military organizations established in the American Revolution. It is the only military unit in the US that owns its own armory building, built with private funds in the Rittenhouse section of Philadelphia. John J. Pershing said that "no National Guard organization in the country did more, relatively, in the First World War than the [First Troop Philadelphia City Cavalry]."