On 7 April 1778 Lee's Troop was replaced by Captain Addison Lewis's Troop. Lee's Troop was expanded into Lee's Legion, designated the 2nd Partisan Corps in 1781. The 1st Continental Light Dragoons were reassigned to the Southern Department on 8 November 1778, when the Corps of Continental Light Dragoons was broken up as an organization. The regiment was officially re-organized on 1 January 1781, consisting of four mounted and two dismounted troops. It was redesignated as the 1st Legionary Corps. On 2 November 1782, reflecting an amalgamation that had occurred in the spring of 1780, the unit was consolidated with the 3d Legionary Corps, maintaining five troops. The new unit was designated 1st Legionary Corps.