Then he sailed, with ten officers, on the Sybille for Santo Domingo, changing ships to La Gentille, arriving at Newport on 29 September 1780.

Marquis de Choisy was assigned the Virginia militia, Lauzun's Legion, and 800 French Marines.

Tarleton withdrew within his lines, and the French pursued, before being ordered to withdraw by the Marquis de Choisy.

[11] Marquis de Choisy wrote Washington: Sir, I have the hounor to inform you that by our arrival at Saoul's Tavern we have met with the ennemi who was in number about 500 men Cavalry and Infantry, that the Cavalry of the Duc of Lauzun has attaqued them, pierced through and that we have had a great advantage on them We can esteem they have 30 men killed or wounded The 200 men grenadier Americans who were the only Infantry advanced enough to have part in the affair and who have behaved excedingly well have killed one officer who was at the head of the Infantry of the ennemi.

[15] He was promoted to Maréchal de Camp (major general) on 5 December 1781, and commander of the Armee du Nord in 1791.

[17] The revolutionary government, which had just published, on 26 October 1791[18] the decree cementing Avignon and Comtat Venaissin with France, dispatched "civil police chiefs" who were escorted by troops placed under the command of the general Choisy (with the 9th regiment of dragoons).

[19] Arriving on the spot, they ordered, after the Massacres of La Glacière, arrests, but on 19 March 1792, a general amnesty was voted by the National Assembly putting a rest to the inquiry.