Galliffet served with distinction at the Siege of Sevastopol (1854–55) during the Crimean War and in Emperor Napoleon III's wars in Algeria, Italy, and Mexico. As a brigade general during the Franco-German War (1870–71), he was captured at the Battle of Sedan. Assigned the task of suppressing Parisian revolts in 1871, he performed efficiently but with a severity that earned him the animosity of the political left, despite his own republicanism. By 1885 Galliffet was a member of the Conseil Supérieur de la Guerre (Supreme War Council) and had become a political protégé of Léon Gambetta, the moderate republican leader. In June 1899 Premier René Waldeck-Rousseau appointed Galliffet minister of war in order to balance the Cabinet that would support the Dreyfus revision. However, Galliffet was too eccentric and too ill suited for politics, and his role in the 1871 revolt undercut his effectiveness; within a year he was forced to leave his post.