On 3 November 1867 the city was the site of the Battle of Mentana between French-Papal troops and the Italian volunteers led by Giuseppe Garibaldi, who were attempting to capture Rome in order to incorporate it into the newly unified Kingdom of Italy. The battle ended in a victory by the French-Papal troops. In Mentana, the monument "Ara dei Caduti" (Altar of the Fallen) is built over the mass grave of the Italian patriots who died in the battle.