Complex sentence: This led to the concentration of the turrets and associated magazines and hence the limited firing arcs and was repeated in the design of the French "Dunkerque" fast battleships and "Richelieu" battleships.
Split into simpler sentences: This led to the concentration of the turrets and associated magazines and hence the limited firing arcs. This was repeated in the design of the French "Dunkerque" fast battleships and "Richelieu" battleships.