First Troop Philadelphia City Cavalry
Overview
 
The First Troop Philadelphia City Cavalry, also known as the First City Troop, is a unit of the Pennsylvania Army National Guard
Pennsylvania Army National Guard
The Pennsylvania Army National Guard, abbreviated PAARNG, is part of the United States Army National Guard and is based in the U.S. Commonwealth of Pennsylvania...

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The First Troop Philadelphia City Cavalry, or "First City Troop", is the oldest military unit in the US that is still in active service. It is also the only military unit in the US that owns its own Armory building, built with private funds in the Rittenhouse section of Philadelphia.
 
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