Respuesta :

The Battle of Verdun (French: Bataille de Verdun [bataj də vɛʁdœ̃]; German: Schlacht um Verdun [ʃlaxt ˀʊm ˈvɛɐdœŋ]), fought from 21 February to 18 December 1916, was the largest and longest battle of the First World War on the Western Front between the German and French armies.

hope this helps looks like French & German
avm712

The countries that fought in the Battle of Verdun were France, Germany , and Britain.

Hope this helps.