How was France able to aquire Louisiana from Spain? What implications would that have for the treaty the United States negotiated with Spain in 1795?

The treaty of fountain blue was a secret agreement in 1762, which France ceded Louisiana ( New France) to Spain.Settlers are moving west and settling along the Mississippi and into south Louisiana. The invaders king Carlos feared most were the British, until the Americans won independence. In 1795, the border was settled, and the United States and Spain concluded a trade agreement. New Orleans was reopened, and Americans could transfer goods without paying cargo fees, the right of deposit, when they transferred goods from one ship to another.

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d. migration of french settlers into english colonies