Complex sentence: They were to have been fine ships of there day if completed but, WWII stopped the french from completing them and a lot of there battleships like the Normandie class, Lyon class, Alsace class, and some of the Richelieu class.
Split into simpler sentences: They were to have been fine ships of there day if completed but, WWII stopped the french from completing them and a lot of there battleships. Like the Normandie class, Lyon class, Alsace class and some of the Richelieu class.