Jutland drives night training across the fleet

The German fleet's escape at Jutland raised the further question of why it had not attacked during the night. In this interpretation, darkness could favor a smaller force because a larger fleet had to take greater care to avoid firing on its own ships. The Royal Navy developed a requirement that extended beyond specialist destroyers or torpedo formations. Torpedo boats, battleships, carriers, and their aircraft all needed to operate and fight after dark. Reaching that level by 1931-32 required roughly fifteen years of training, exercises, investment, and ship modification.