 At the outbreak of World War I in July 1914, Greece's pro-German monarch, Constantine I, decided to remain neutral, so the ships saw no action.The Entente powers landed troops in Salonika in 1915, which was a source of tension between France and Greece.Ultimately, the French seized the Hellenic Navy on 19 October 1916 (see "Noemvriana" and National Schism).