German battlecruisers had to reinforce the battle line

German battlecruisers had to be capable of joining the battle line, unlike the earlier British ships designed around cruising and other roles. This logic resembles Japan’s effort to combine battleships and armoured cruisers in the four-four and later eight-eight fleet concepts. Heavier German construction helped explain resilience, but it did not remove Germany’s shortage in total hulls. Goeben’s absence represented one-sixth of Germany’s battlecruiser strength, while Britain could bring nine ships of the type even after Australia’s collision with New Zealand removed her for repairs. The loss or absence of one German battlecruiser therefore represented a much larger share of a small force than the equivalent British absence. Design quality mattered, but force size determined how much operational risk each navy could absorb.