After the successful conclusion of the Italian campaign and the annexation of Savoy and Nice to the territory of France, the Continental foreign policy of Napoleon III entered a calmer period. Expeditions to distant corners of the world and the expansion of the Empire replaced major changes in the map of Europe. The Emperor's health declined; he gained weight, he began to dye his hair to cover the gray, he walked slowly because of gout, and in 1864, at the military camp of Châlons-en-Champagne, he suffered the first medical crisis from his gallstones, the ailment that killed him nine years later. He was less engaged in governing and less attentive to detail, but still sought opportunities to increase French commerce and prestige globally.