French corsairs now a small museum. French corsairs Corsairs () were privateers, authorized to conduct raids on shipping of a nation at war with France, on behalf of the French crown. Seized vessels and cargo were sold at auction, with the corsair captain entitled to a portion of the proceeds. Although not French Navy personnel, corsairs were considered legitimate combatants in France (and allied nations), provided the commanding officer of the vessel was in possession of a valid letter of marque ( or , the latter giving "corsairs" their name), and the officers and crew conducted themselves according to contemporary admiralty law.
Anglo-French War (1778–1783) the Comte de Grasse, after operations in the Windward Islands, was directed to go to Cap-Français (present-day Cap-Haïtien) to determine what resources would be required to assist Spanish operations. Due to a lack of transports, France also provided six million livres to support the American war effort beyond of providing additional troops. The French fleet at Newport was given a new commander, the Comte de Barras. De Barras was ordered to take the Newport fleet to harass British shipping off Nova Scotia and Newfoundland, and the French army at Newport was ordered to combine with Washington's army outside New York.