Sent to Spain in 1808 in command of German troops, Amey fought at the Third Siege of Gerona the following year. In 1812 he participated in the French invasion of Russia and led his troops at the First and Second Battles of Polotsk. He was promoted to general of division and fought at the Berezina. He fought at Arnhem in fall 1813. While leading a division of recruits, he was wounded and captured after a heroic defense in the Battle of Fère-Champenoise in 1814. After rallying to Napoleon during the Hundred Days he was retired in 1815. He served as mayor of Sélestat for ten years then returned to military service in 1830–1833. His surname is one of the names inscribed under the Arc de Triomphe, on Column 1.
