The Franco-Trarzan War of 1825 was a conflict between the forces of the new emir of Trarza, Muhammad al Habib, and France, ruled at the time by Charles X and the ultra comte de Villèle. In 1825, Muhammad attempted to establish control over the French-protected Waalo Kingdom, then located south of the Senegal River, by marrying the heiress to the kingdom. The French responded by sending a large expeditionary force that crushed Muhammad's army. The war incited the French to expand to the north of the Senegal River.