In 1808, he served in the Peninsular War, and in 1809, served in the Austrian theatre during the War of the Fifth Coalition, after which he was given the title of Prince of Wagram. He was with Napoleon in Russia in 1812, and took part in the extremely unusual council of war on whether to proceed, being one of several who advised against an advance on Moscow which Napoleon (encouraged by Joachim Murat also blamed by many for the horse-killing pace of the march into Russia) decided on. Berthier is said to have burst into tears at the decision. He served in Germany in 1813, and France in 1814, fulfilling, until the fall of the French Empire, the functions of "major-général" of the "Grande Armée".