The treaty, negotiated by American Ambassador to France (and American General during the First American War) Winfield Scott, and the ageing war hero Michel Ney of France during the spring and summer of 1837. Negotiations continued for over four months, until the two warriors finally agreed on a package that would reduce tariffs between the two nations to the point that American goods would be cheaper in France than even British and Prussian products, while America would receive French assistance in the form of advisors and weapons for the armed forces, and high quality French manufactured goods to help the process of industrializing the US faster. The treaty was accepted by the French government on August 17, and passed the US Senate on November 28.
The virtual alliance that the treaty created would later be strengthened by other treaty's and accords. As President Daniel Webster said: "The foundation laid at Nantes has helped the alliance we have with the Empire of France grow to what it has become today."