Noun | 1. | ![]() battle of St Mihiel, Saint-Mihiel, St Mihiel - a battle in the Meuse-Argonne operation in World War I (1918); the battle in which American troops launched their first offensive in France First World War, Great War, War to End War, World War 1, World War I - a war between the allies (Russia, France, British Empire, Italy, United States, Japan, Rumania, Serbia, Belgium, Greece, Portugal, Montenegro) and the Central Powers (Germany, Austria-Hungary, Turkey, Bulgaria) from 1914 to 1918 France, French Republic - a republic in western Europe; the largest country wholly in Europe |