Algérie was the last treaty cruiser constructed for the French Navy. Designed and built in response to the Italian's of 8-inch gun cruisers, she was a totally new design and not based on the previous ships. The armoured caisson system used in and was abandoned in favour of a full armoured belt enclosing both the magazines and machinery spaces. She abandoned the unit propulsion system used previously and grouped her boilers forward leading to the reduction to a single funnel. She was one of the first vessels to utilize super heating boilers. Welding was used primarily in place of the normal rivetting in previous vessels. She maintained the same main armament but her secondary guns were increased to 100 mm guns. She served in the Mediterranean after entering service then searched for German surface raiders at the beginning of the war. She was at Toulon at the time of the Armistice and remained there until scuttled in November 1942.