 Complete the following phrase:  By the mid-1930s, the French again embarked on a naval construction program to counter the German and Italian fleets, resulting in the two s and four s; of the four Richelieus, two were cancelled by the start of World War II, and only one was completed in time to see action during the war. A final design, the , was authorized in 1940 after the war began but Frances defeat in the Battle of France ended the program. The two Dunkerques saw limited action during the war, with being sunk during the British attack on Mers-el-Kébir to prevent her from being seized by the Germans. and were also sunk there, and the third member of the class, , was seized by the British and turned over to the Free French Naval Forces. Refloated and returned to Toulon, Dunkerque and Provence were later scuttled there with the formers sister ship when the French 