École d'application de l'artillerie et du génie
The École d’application de l’artillerie et du génie was a military training establishment in France under the aegis of the École polytechnique. It was established in Metz in 1802 by Napoleon whilst he was First Consul by merging the ancien regime engineering school in Metz with the artillery school in Châlons sur Marne. After the Franco-Prussian War in 1870 and Germany's annexation of Alsace-Lorraine it moved to Fontainebleau.