One of the first things you notice when you approach Les Invalides is the row of cannons facing outward across a small moat. These are not little cannons, they are for the most part giant beasts requiring iron trolleys just to stay in place. These pieces are part of the Musée de l'Artillerie (Museum of Artillery, founded in 1785 in the aftermath of the French Revolution and expanded under Napoleon). It was moved into the Hôtel des Invalides in 1871, immediately following the Franco-Prussian War and the proclamation of the Third Republic. The collection was augmented by collections from the National Library, the Louvre, the Artillery of Vincennes, the Hôtel des Monnaies and many private collections. Another institution called the Musée Historique de l'Armée (Historical Museum of the Army) was created in 1896 following the World Fair. The two were merged in 1905 into the Musée de l'Armee.