Where was the French Navy during Verdun?

Where was the French Navy during the Battle of Verdun?

French naval personnel appear to have served at Verdun, and the navy performed other necessary wartime duties, but it lacked a celebrated fleet victory that could anchor its postwar political case.

French naval personnel appear to have been sent to Verdun, although the recollection is qualified in the answer. The French Navy also carried out its own wartime responsibilities. Its work against the submarine threat mattered because German U-boats endangered French as well as British sea communications. Convoy protection and an uneven record at Gallipoli, against Austria-Hungary, and in the pursuit of Goeben did not supply a politically powerful victory narrative. The Royal Navy could invoke Coronel and Jutland, while the French Navy entered the interwar budget struggle without a famous battle that symbolized national sacrifice and strategic value.