Treaty of Aranjuez (1779)

The Treaty of Aranjuez was signed on 12 April 1779 between France and Spain. France agreed to aid in the capture of Gibraltar, the Floridas (East and West Florida), and the island of Menorca. In return, the Spanish agreed to join in France’s war against Great Britain. Based on the terms of the treaty, Spain joined the American Revolutionary War against Britain.

The treaty followed on from the earlier Bourbon Family Compacts which allied Spain and France earlier in the century. The Treaty's clause committing France to continue fighting until Spain had gained Gibraltar, almost led to the war continuing into 1783. Spain, however, agreed to accept Menorca and West Florida in lieu of Gibraltar.