5th Cavalry Regiment

The 5th Cavalry Regiment is a historical unit of the United States Army that began its service on March 3, 1855, as the Second Cavalry Regiment. On August 3, 1861, it was redesignated as the 5th Cavalry Regiment following an act of Congress directing "that the two regiments of dragoons, the regiment of mounted riflemen, and the two regiments of cavalry shall hereafter be known and recognized, as the first, second, third, fourth, and fifth regiments of cavalry respectively..." and continues in modified organizational format in the U.S. Army.