
Saint Louis was ordered to the Dardanelles in November 1914 to guard against a sortie into the Mediterranean by the German battlecruiser SMS Goeben.


When World War I began, she escorted Allied troop convoys for the first two months. The ship was involved in two accidental ramming incidents with two other French warships in her career, one of which sank a submarine. She spent most of her career assigned to the Mediterranean Squadron ( escadre de la Méditerranée) and usually was chosen to serve as a flagship.

Saint Louis was the last of the three Charlemagne-class pre-dreadnought battleships built for the French Navy in the mid-1890s.
