The spahi regiments saw extensive service in the French conquest of Algeria, in the Franco-Prussian War, in Tonkin towards the end of the Sino-French War (1885), in the occupation of Morocco and Syria, and in both World Wars. A detachment of Spahis served as the personal escort of Marshal Jacques Leroy de Saint Arnaud in the Crimean War and were photographed there by Roger Fenton. A contingent of Spahis also participated in the North China campaign of 1860. During the Franco-Prussian War of 1870-71 one detached squadrons of Spahis formed part of the forces defending Paris, while a provisional regiment comprising three squadrons was attached to the Army of the Loire. A serious uprising against French rule in Algeria during 1871–72 was sparked off by a mutiny of the 5th squadron of the 3rd Spahis, who had been ordered to France to reinforce those units already there.